Journal of Yeungnam Medical Science

Kil Ho Cho

20 Articles

Pathology and Forensic Medicine
Cystic Dystrophy in Heterotopic Pancreas of Duodenal Wall －A Case Report－: Mi Jin Gu, Won Kyu Park, Yeung Kyong Bae, Jae Ho Cho, Jay Chun Chang, Jae Woon Kim, Kil Ho Cho, Mi Soo Hwang, Bok Hwan Park, Joon Hyuk Choi; Yeungnam Univ J Med. 2007;24(2 Suppl):S647-651. Published online December 31, 2007; DOI: https://doi.org/10.12701/yujm.2007.24.2S.S647

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Abstract PDF: Cystic dystrophy is an uncommon, benign poorly understood disease. It is characterized by the development of cysts in heterotopic pancreatic tissue. A 57-year-old-man was hospitalized for abdominal pain for a week. He is a heavy alcohol drinker. There was a cyst at second portion of duodenum on CT. Under the impression of peptic ulcer perforation, Whipple’s operation was performed. Grossly, a cystic space, measuring 3.0 cm in diameter, was noted within the thickened duodenal wall. Microscopically, the cyst was lined by columnar epithelium and granulation tissue and embedded in ectopic pancreatic tissue. The adjacent pancreatic tissue showed focal chronic pancreatitis.

Radiology, Radiotherapy & Diagnostic Imaging
A Case of Vascular Anomaly in Swine: Infrahepatic Caudal/Inferior Vena Cava Interruption with Azygos/Hemiazygos Continuation: Won Kyu Park, Kil Ho Cho; Yeungnam Univ J Med. 2007;24(2 Suppl):S719-724. Published online December 31, 2007; DOI: https://doi.org/10.12701/yujm.2007.24.2S.S719

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Abstract PDF: Absence of caudal/inferior vena cava (CVC/IVC) with azygos/hemiazygos continuation is an uncommon vascular anomaly. To the best of the investigators knowledge, this is the first report of absence of CVC/IVC with azygos/hemiazygos continuation in the swine in the world. In this case, absence of CVC/IVC was confirmed by venography and necropsy. The recognition of this congenital venous anomaly (CVC/IVC interruption with azygos/hemiazygos continuation) is important for interventional radiologist and cardiologist.

Radiology, Radiotherapy & Diagnostic Imaging
Supratentorial Leptomeningeal Hemangioblstoma －Case Report－: Han Won Jang, Woo Mok Byun, Jae Kyo Lee, Jae Ho Cho, Kil Ho Cho, Mi Soo Hwang, Bok Hwan Park, Joon Hyuk Choi; Yeungnam Univ J Med. 2007;24(2 Suppl):S770-774. Published online December 31, 2007; DOI: https://doi.org/10.12701/yujm.2007.24.2S.S770

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Abstract PDF

Hemangioblastoma is a benign tumor that most commonly occurs in the cerebellum and associated with von Hippel-Lindau (VHL) disease. Supratentorial hemanigoblastomas are exceptionally rare. We describe the magnetic resonance imaging (MRI) and histopathologic findings of a supratentorial leptomeningeal hemangioblastoma.

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Sporadic supratentorial hemangioblastoma with meningeal affection: A case report and literature review
Juan Francisco Sánchez-Ortega, Marta Claramonte, Mónica Martín, Juan Calatayud-Pérez
Surgical Neurology International.2021; 12: 394. CrossRef
Supratentorial hemangioblastomas in von Hippel–Lindau wild-type patients – case series and literature review
Luís Rocha, Carolina Noronha, Ricardo Taipa, Joaquim Reis, Mário Gomes, Ernesto Carvalho
International Journal of Neuroscience.2018; 128(3): 295. CrossRef
Meningeal Supratentorial Hemangioblastoma in a Patient with Von Hippel-Lindau Disease Mimicking Angioblastic Menigioma
Hoon Kim, Ik-Seong Park, Kwang Wook Jo
Journal of Korean Neurosurgical Society.2013; 54(5): 415. CrossRef
Supratentorial hemangioblastoma: clinical features, prognosis, and predictive value of location for von Hippel-Lindau disease
S. A. Mills, M. C. Oh, M. J. Rutkowski, M. E. Sughrue, I. J. Barani, A. T. Parsa
Neuro-Oncology.2012; 14(8): 1097. CrossRef

Orthopedics and Sports Medicine
Ewing's Sarcoma of the Calcaneus: A Case Report.: Joon Hyuk Choi, Ji Hyun Yeo, Mi Jin Kim, Duck Seop Shin, Kil Ho Cho; Yeungnam Univ J Med. 2004;21(2):256-261. Published online December 31, 2004; DOI: https://doi.org/10.12701/yujm.2004.21.2.256

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Ewing's sarcoma is rarely found occurs in the bones of the hands and feet. We report a case of Ewing's sarcoma of the left calcaneus in a 15-year-old girl who complained of left heel pain and swelling. An open biopsy was performed and histological examination showed the proliferation of uniform small round cells. Immunohistochemical staining for CD99 showed diffuse strong positivity in the cytoplasmic membrane of the tumor cells. After preoperative chemotherapy, a below knee amputation was performed.

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3D‐Printed Talus‐Calcaneus Prosthesis in Treating Ewing's Sarcoma: A Case Report
Weiyi Wang, Jingjing An, Minxun Lu, Xuanhong He, Zhuangzhuang Li, Yitian Wang, Taojun Gong, Yong Zhou, Li Min, Yi Luo, Chongqi Tu
Orthopaedic Surgery.2025; 17(1): 288. CrossRef
Diagnoses, treatment, and oncologic outcomes in patients with calcaneal malignances: Case series, systematic literature review, and pooled cohort analysis
Erik T. Newman, Eveline A. J. van Rein, Nina Theyskens, Marco L. Ferrone, John E. Ready, Kevin A. Raskin, Santiago A. Lozano Calderon
Journal of Surgical Oncology.2020; 122(8): 1731. CrossRef

Pathology and Forensic Medicine
Calcifying Aponeurotic Fibroma: A Case Report.: Joon Hyuk Choi, Jae Sung Seo, Kil Ho Cho; Yeungnam Univ J Med. 2003;20(2):223-228. Published online December 31, 2003; DOI: https://doi.org/10.12701/yujm.2003.20.2.223

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Calcifying aponeurotic fibroma is a rare benign soft tissue tumor that usually involves distal extremities in children and adolescents, especially the hands and feet. We report a case of calcifying aponeurotic fibroma arising in a 14-year-old boy who complained of right thumb mass. Surgical excision was performed. The resected specimen showed a 2.0x1.5 cm grayish white, fibrotic tissue. Histologic examination showed proliferation of fibroblastic cells with infiltrative growth pattern. Foci of calcification and chondroid differentiation were present.

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Calcifying Aponeurotic Fibroma of Leg Masquerading as Hemangioma in an Adolescent Male along with Review of Literature
Akriti Jindal, Gargi Kapatia, Manjit Kaur Rana, Rahul Sharma
Indian Journal of Surgical Oncology.2024; 15(1): 136. CrossRef
Calcifying Aponeurotic Fibroma of the Elbow - A Case Report -
Mee-Hye Oh, Eun Ah Jung, Ji Hye Lee, Hyun Deuk Cho, Jong Kyu Han, Yong-Koo Park
The Korean Journal of Pathology.2009; 43(1): 75. CrossRef

Radiology, Radiotherapy & Diagnostic Imaging
Clinical Situations in which Musculoskeletal Ultrasound is Helpful.: Kil Ho Cho; Yeungnam Univ J Med. 2001;18(2):170-186. Published online December 31, 2001; DOI: https://doi.org/10.12701/yujm.2001.18.2.170

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Abstract PDF: Musculoskeletal ultrasound (MSUS) has newly evolved by the mechanical improvement of the machine over past several years, becoming a part of imaging techniques for the evaluation of variable diseases in the musculoskeletal system. MSUS has proven diagnostic superiority in pathologies including rotator cuff disease of the shoulder, lateral epicondylitis of the elbow, diseases of the peripheral nerve, detection of intra-articular loose bodies and soft tissue foreign bodies, and in evaluating small superficial soft tissue tumors such as ganglion, epidermoid cyst, and glomus tumor. Besides, MSUS is very useful for obtaining tissue or fluid via percutaneous fine needle aspiration and/or biopsy for the histopathologic diagnosis. Combining MSUS with MR would play a great role in the field of the diagnostic imaging of the musculoskeletal system. The MSUS examiner should have the knowledge of cross-sectional anatomy, and of the mechanical and physical properties of ultrasound in order to interpret the ultrasound findings accurately and properly, and to avoid diagnostic errors due to variable artifacts subsequently. The goal of this article is to introduce the capabilities of MSUS in certain kinds of clinical situation and to familiarize the reader with MSUS. For the purpose, author intends to describe this article according not to the disease-, or organ-based, but to the clinical problem-based format.

Oncology and Cancer Research
Chordoma: A Clinicopathologic Review of 4 Cases.: Joon Hyuk Choi, Young Kyung Bae, Mi Jin Kim, Duk Seop Shin, Kil Ho Cho; Yeungnam Univ J Med. 1999;16(2):369-375. Published online December 31, 1999; DOI: https://doi.org/10.12701/yujm.1999.16.2.369

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Abstract PDF: Chordoma is a slow-growing malignant neoplasm arising from the remnants of the primitive notochord. It accounts for 1 to 4% of all malignant bone tumors. It occurs exclusively along the spinal axis. Authors experienced four cases of chordoma occurred in the sacrococcygeal region. There were two male and two female patients, with a mean age of 63.5 years(range. 57~75 years). Tissue was obtained by wide excision in two patients, by incisional biopsy in one patient and by needle biopsy in the other. Adjuvant radiation theraphy was performed on all the patients after their biopsy. The mean diameter of the tumors was 7.6cm(range, 5.5 to 13.0cm). Grossly, tumor was multilobulated, soft and myxoid gelatinous mass. Microscopically, the tumor showed lobulated feature divided by fibrous septa within it. There were physaliphorous cells with vacuolated bubbly cytoplasm. And small uniform, round, and non-vacuolated tumor cells were also present. On immunohistochemical stain, all the cases were immunoreactive for cytokeratin, epithelial membrane antigen(EMA) and vimentin, respectively. One of the 4 cases was positive for S-100 protein. All the cases were negative for CEA.

Oncology and Cancer Research
Clear cell sarcoma: 1 case report.: Joon Hyuk Choi, Hae Jeong Choi, Mi Jin Kim, Duk Seop Shin, Kil Ho Cho; Yeungnam Univ J Med. 1999;16(1):108-113. Published online June 30, 1999; DOI: https://doi.org/10.12701/yujm.1999.16.1.108

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Abstract PDF: Clear cell sarcoma is a rare soft tissue sarcoma that occurs tendons and aponeuroses, usually of the lower extremities in young adult. The exact histogenesis is not definitely established, We experienced a case of 58 year-old female who presented with a 3.2x2.2cm sized mass located in the subcutaneous tissue on the left lower thigh. The mass was well circumscribed and grayish firm. Two small satellite nodules were also seen. Histologically the tumor was composed of round to fusiform cells with clear or pale eosinophilic cytoplasm and separated into compact nests or short fascicles by delicated fibrous septa. The melanin pigments and hemosiderin were seen. Tumor cells showed positive reaction for S-100 protein and HMB-45. The ultrastructural examination showed abundant mitochondria and melanosomes.

Orthopedics and Sports Medicine
A Clinicopathologic Review of Eight Cases of Chondroblastoma.: Joon Hyuk Choi, Hae Jeong Choi, Mi Jin Ku, Dae Hong Suh, Duk Seop Shin, Kil Ho Cho; Yeungnam Univ J Med. 1998;15(2):359-370. Published online December 31, 1998; DOI: https://doi.org/10.12701/yujm.1998.15.2.359

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Abstract PDF: Eight cases of chondroblastoma were studied by analyzing the clinical and pathologic findings. The age of eight cases ranged from 17 to 38 years old(median age, 22.7 years old). The tumors developed in the femur (3 cases), patella (2 cases), tibia( 1 case), fibula (1 case), and ulna (1 case). The mean diameter of tumors was 4.0 cm (range, 1.5 to 8.0 cm). Grossly, tumors showed grayish brown solid area with foci of secondary aneurysmal bone cyst. Histologically, the tumor cells were round or polygonal in shape with nuclear groove. And there were chondroid differentiation(7 cases), mitosis(3 cases), calcific deposits(3 cases), secondary aneurysmal bone cyst(4 cases), hemosiderin deposits(4 cases), necrosis(3 cases), vascular invasion(1 caes) and foamy histiocytes and cholesterol cleft(1 cases). All cases showed no metastasis to lymph node and distant organ. Seven cases (87.5 %) were immunoreactive for S-100 protein. None were immunoreactive for cytokeratin.

Neurology
MRI Findings of Neuro-Behcet' Disease.: Han Won Jang, Woo Mok Byun, Kil Ho Cho, Mi Soo Hwang; Yeungnam Univ J Med. 1998;15(2):306-315. Published online December 31, 1998; DOI: https://doi.org/10.12701/yujm.1998.15.2.306

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Abstract PDF: MR findings in nine patients(three female, six male) with neuroBehcet's disease were retrospectively analyzed. NeuroBehcet's disease was diagnosed on the basis of typical clinical symptoms. Involved site, pattern, signal intensity, and contrast enhancement pattern on MRI were evaluated. In addition, follow up MR imaging was performed in four patients. The midbrain(7/9), internal capsule(7/9), pons(6/9), thalamus(6/9), basal ganglia(5/9), middle cerebella peduncle(4/9), medulla oblongata(2/9), and subcortical white matter(2/9) are involved on MRI. The size of lesions were 1cm to 3cm and their margin was ill-defined and patchy. Inhomogeneous high signal intensity on the T2-weighted images and low signal intensity on T1-weighted images was seen respectvely. In four of nine cases, there was focal enhancement. On follow up MR imaging, improvement or recurrance of the lesions was found. Also in two cases of follow up cases there was artophy in brainstem and/or middle cerebellar peduncles. In conclusion, MR imaging with systemic clinical symptoms is useful for diagnosing neuro-Behcet's disease.

Pulmonary and Respiratory Medicine
CT Findings of Bronchogenic Cyst: Hyun Cheol Cho, Yong Woo Lee, Mi Soo Hwang, Kil Ho Cho, Woo Mok Byun, Jae Ho Cho, Jae Chun Chang; Yeungnam Univ J Med. 1995;12(2):226-236. Published online December 31, 1995; DOI: https://doi.org/10.12701/yujm.1995.12.2.226

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Abstract PDF: We studied to evaluate CT characteristics of bronchogenic cysts. We retrospectively evaluated CT of 11 patients with pathologically proved bronchogenic cyst. Precontrast and postcontrast CT scan was performed in all. We analyzed CT with viewpoints of location, size, attenuation on pre- and postcontrast scan, and calcification. Three of 11 bronchogenic cysts were intrapulmonary in location and eight were located in the mediastinum. Two of 3 intrapulmonary bronchogenic cysts were located in the right lower lobe, and the remaining one was left lower lobe. Intrapulmonary bronchogenic cysts ranged from 6cm to 12cm in diameter (average, 9.7 cm). On Cr, intrapulmonary bronchogenic cysts appeared as thin-wall air cyst, homogenous water attenuation and soft tissue attenuation with air bubble respectively. Mediastinal bronchogenic cysts were located in posterior mediastinum (n=5), superior mediastinum (n=2), middle mediastinum (n=1) respectively. These cysts ranged in size from 3cm to 8cm in diameter (average 5.0 cm). On CT, five showed homogenous water attenuation, two soft tissue attenuation similar to that of muscle, one air-fluid level. Calcification or contrast enhancement was not detected in any cases. On operative findings, all of intrapulmonary bronchogenic cysts contained dirty pus-like material and all of mediastinal bronchogenic cysts contained whitish or yellowish mucus material. Bronchogenic cysts showed homogenous water density in many cases, homogenous soft tissue density, air-fluid level and air-filled cyst. The constellation of CT findings may be helpful in the diagnosis and Differentiation of bronchogenic cyst.

Radiation Oncology
Treatment Planning Correction Using MRI in the Radiotherapy of Cervical Cancer.: Se One Shin, Kil Ho Cho, Chan Won Park; Yeungnam Univ J Med. 1995;12(2):203-209. Published online December 31, 1995; DOI: https://doi.org/10.12701/yujm.1995.12.2.203

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Abstract PDF: PURPOSE: To evaluate the role of MRI in the management of cervical cancer treated by conventional four-field whole pelvic irradiation. METHOD AND MATERIAL: Between 1993-march and 1994-february, 20 patients(4 Stage I B, 3 Stage U A, 13 Stage U B) with invasive cervical cancer were eligible for evaluation of accuracy of conventionally designed lateral treatment field without MRI determination. RESULTS: 5 out of 20 Patients had inadequate margin without MRI. The position of uterine fundus was more important than cervix in correction of field size and the center of treatment field. CONCLUSION: This Preliminary date show MRI determination of uterine position prior to radiotherapy planning is essential in the case of four-field whole pelvic irradiation technique.

Radiology, Radiotherapy & Diagnostic Imaging
Changes of the Renal Arteries Accordding to Various Embolic Materials: Jae Ho Cho, Kil Ho Cho, Jae Chung Chang, Bok Hwan Park, Dong Sug Kim; Yeungnam Univ J Med. 1995;12(1):96-104. Published online June 30, 1995; DOI: https://doi.org/10.12701/yujm.1995.12.1.96

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Abstract PDF: The transarterial embolization has been widely used to control bleeding. It has a variety of clinical utility; to reduce bleeding on the surgical field, to reduce the size of malignant tumor as a preopearative treatment, to treat arteriovenous malformation or arterial aneurysm as a curative method and to promote life quality of patient with diffuse or multiple hepatocellular carcinoma as a palliative treatment, etc. With the advance of modem technology, various embolic materials have been also developed. However, it has not been fully investigated of histopathologic changes of the embolized organs according to the embolic materials used. This study was undertaken to investigate the histopathologic changes of embolized renal artery in rabbit by various embolic materials, according to each embolic material and to time passed by after embolization. Of the 5 arteries embolized by ethylene vinyl alcohol copolymer (EVAL), one showed abscess formation in embolized kidney. The other 4 allowed to perform further pathologic study: within a week after embolization there was no any specific change in vessels, however, mnimal endothelial hypertrophy was observed following 2 weeks of embolization. Of the 8 renal arteries embolized by N-buthyl-2-cyanoacrylate (Histoacryl), 4 showed total occlusion of the main renal arteries as well as renal infarction, which reflects the strong adhesiveness of Histoacryl to vascular wall. The other 4 showed fibrinoid degeneration in vascular wall within a week. However, further change was not observed thereafter. In all the 5 renal arteries embolized by polyvinyl alcohol (Ivalon), there were infiltration of inflammatory cells along the vessel walls, within one week, which represents vasculitis. They showed some fibrosis with appearance of giant cells in the vessels two months after embolization, respectively. The results suggest that EVAL is useful for the embolization of hypervascular lesion with limited arteriovenous fistula, histoacryl for the curative treatment of the lesion with high blood flow or severe arteriovenous fistula, and Ivalan for palliative treatment of malignant tumor or arteriovenous malformation, respectively.

Radiology, Radiotherapy & Diagnostic Imaging
Computed tomographic findings of malignant ovarian germ cell tumors: Woo Mok Byun, Kil Ho Cho, Bok Hwan Park; Yeungnam Univ J Med. 1993;10(2):417-422. Published online December 31, 1993; DOI: https://doi.org/10.12701/yujm.1993.10.2.417

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Abstract PDF: Diagnosis of malignant germ cell tumors of the ovary is usually difficult because many ovarian neoplasms have similar clinical and radiologic manifestations. We reviewed retrospectively 12 cases of ovarian malignant germ cell tumor and evaluated with respect to size, mass characteristics on computed tomography for differential diagnosis. Endodermal sinus tumors were mainly cystic mass with some solid component and septations. Immature teratomas showed typical manifestations, such as fatty tissue, calcifications, cysts, and irregular shaped soft tissue densities. Dysgerminoma was mainly solid mass without cystic component, and mixed germ cell tumor showed nonspecific manifestations. All cases were relatively large in size, and young in age. In conclusion, CT findings of malignant germ cell tumors are helpful in differential diagnosis

Radiology, Radiotherapy & Diagnostic Imaging
Analysis of the result and merit of computed tomography guided percutaneous needle aspiration biopsy of focal lung lesion.: You Song Chang, Kil Ho Cho, Woo Mock Byun, Mi Soo Hwang, Bok Hwan Prk; Yeungnam Univ J Med. 1993;10(1):127-134. Published online June 30, 1993; DOI: https://doi.org/10.12701/yujm.1993.10.1.127

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Abstract PDF: Percutaneous needle biopsy of pulmonary lesion with use of fluoroscopic guidance is well estabilished as a diagnostic tool but limited by the small size and inaccessibility of certain lesions. However, percutaneous needle biopsy'has been used increasingly in relation to advance and the salty of smaller biopsy needle and new imaging modalities such as ultrasound and CT. CT, because of its characteristics of high resolution, allows tissue sampling with considerable safty from area that heretofore could not be visualized under fluoroscopy. The authors summarized 44 pulmonary lesions that underwent CT-guided transthoracic biopsy with fine-needle over a 14 month period and analyzed the sensitivity of PTNB. -CT-guided PTNB was done with 20 gauge or 22 gauge Westcott biopoy needle (Mann medical products, USA). A diagnosis was made in 27 of 44 cases (61%) including malignany in 19 of 24 cases and benignancy in 8 of 20 cases. The pulmonary mass lesions were located at the peripheral zone of the lung field in 33 cases and at the central zone in 11 cases. Complications were observed in 2 cases which were pneumothorax and hemoptysis each but specific therapy was not required The sensitivity of PTNB by one session was 61% (27/44). The sensitivity of malignancy was 79% (19/24) and benignancy was 40% (8/20). These results suggest the usefulness of PTNB using fine needles be increased in eariler diagnosis and improved staging of pulmonary nodular lesions without significant complications.

Radiology, Radiotherapy & Diagnostic Imaging
The cervical spinal fractures : comparison of the sites and incidences according to the causes and the types of the injuries.: Jae Ho Cho, Kil Ho Cho, Woo Mock Byun, Sun Yong Kim, Bok Hwan Park; Yeungnam Univ J Med. 1993;10(1):114-126. Published online June 30, 1993; DOI: https://doi.org/10.12701/yujm.1993.10.1.114

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Abstract PDF: The fractures of the cervical spine are relatively uncommon, but they may cause serious neurologic deficits temporarily or permanently. So, it is very important to treat the patients early by way of exact evaluation for the sites and the mechanisms of the injuries. The authors reviewed retrospectively 188 cervical spinal fractures in 100 patients from Sep. 1984 to Aug. 1990. Commonly involed levels were C5 and C6 in lower cervical level and C2 in upper cervical level and the sites in each spine were body; lamina and odontoid process. The hyperflexion injury was the most common type of the cervical spinal fractures occupying 53% of all cervical fractures and cause more multipe fractures(2.26 fractures/patient) than in hyperextension (1. 68 fractures/patient). In hyperflexion injuries, body, transverse and spinous process were commonly involved but lamina fracture was relatively common in hyperextension injury. The dislocations associated with fractures were developed most commonly in hyperflexion injury and 70% of these were anterior dislocation and the most commonly involved levels were C5-6 and C6-7. In conclusion, hyperflexion injury needs more close examination for the entire spinal levels than injuries of other mechanisms because it results in more severe fractures with or without dislocation and relatively frequent multiple fractures in different levels.

Radiology, Radiotherapy & Diagnostic Imaging
Radiologic findings of mediastinal fibromatosis.: You Song Chang, Jae Ho Cho, Kil Ho Cho, Mee Soo Hwang, Bok Hwan Park; Yeungnam Univ J Med. 1991;8(2):217-221. Published online December 31, 1991; DOI: https://doi.org/10.12701/yujm.1991.8.2.217

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Abstract PDF: The fibromatosis is a rare timorous with local invasion, but is not metastasized distantly. This term should not be applied to nonspecific reactive fibrous proliferations that are part of an inflammatory process of are secondary to injury of hemorrhage and have no tendency toward growth or recurrence. It arises principally from the connective tissue of muscle and overlying fascia or aponeurosis (musculoaponeurotic fibromatosis), and chiefly affects the muscle of shoulder, pelvic girdle, and extremity. The term 'aggressive fibromatosis' is also employed to describe this disease, but it is impossible to predict the clinical course in the individual case. The fibromatosis arising in the mediastinum is very rare, and the report about it is nearly absent. The plain radiography shows merely mass with soft tissue density. The CT demonstrates a poorly defined homogenous or heterogeneous mass, isodense with skeletal muscle on precontrast-images, and slightly hyperdense to muscle on postcontrast-scan. Accurate delineation between the tumor & surrounding tissue is vague or frequently impossible. The authors experienced one case of the mediastinal fibromatosis recently and report the case with review of concerned literature.

Obstetrics, Gynecology, and Reproductive Medicine
A study on the fetal umbilical artery doppler blood flow velocity waveforms in normal pregnancy.: Cheol Seong Bae, Gee Jin Kwun, Doo Jin Lee, Yoon Kee Park, Sung Ho Lee, Kil Ho Cho; Yeungnam Univ J Med. 1991;8(1):63-71. Published online June 30, 1991; DOI: https://doi.org/10.12701/yujm.1991.8.1.63

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Abstract PDF: Noninvasive techniques of antenatal detection of the fetal development and well-being such as biophysical profile, non-stress and stress remain major challenges in modern obstetric practice. To obtain and analyze umbilical artery velocity waveform by pulsed-wave doppler ultrasound, a total of 160 determinations were carried out on 157 normal pregnant women between 16th to 41st week gestation. The ratio of peak systolic to end-diastolic flow velocity (S/D ratio), pulsatility index and resistance index were measured as indices of the resistance in feto-placental circulation. The results were as follows: As gestation advances, the mean values for peak systolic and end-diastolic velocities raised progressively. As gestation advances, the mean values for the S/D ratio declined progressively, exhibiting high diastolic flow velocity caused by low resistance. Pulsatility index, and resistance index were also declined progressively, as gestation advances. The analysis of umbilical artery blood flow velocity waveforms provides a new noninvasive technique to evaluate fetal development and well-being, and may be expected a reliable method for assessment of fetal life.

Laboratory Medicine
Comparison of the results of multistix®-SG and comber-9-Test®RL urine dipstick assay.: Dae Chul Kim, Kyung Dong Kim, Bo Chan Jung, Chung Sook Kim, Kil Ho Cho; Yeungnam Univ J Med. 1991;8(1):42-52. Published online June 30, 1991; DOI: https://doi.org/10.12701/yujm.1991.8.1.42

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Abstract PDF: Two types of urine dipstick assays, Multistix-SG and Comber-9-Test RL, were compared for compatibility, accuracy, specificity and predictive values of a positive and negative test in 501 patients' urine and artificially prepared specimen. We found that the results of semiquantitative tests of Multistix-SG and Comber-9-Test RL performed were statistically similar in patients' specimen. The urinary leukocyte esterase tests of Comber-9-Test RL assays compared with urine sediment microscopy in regard to compatibility, sensitivity, specificity, and predictive values of a positive and negative test 83.7%, 48.1%, 90.3%, 47.4% and 90.1%, respectively. The urinary nitrite tests of Comber-9-Test RL assays compared with urine culture tests, in regard to compatibility, sensitivity, specificity, and predictive values of a positive and negative test were 90.3%, 19.4%, 84.7%, 53.8% and 94.1, respectively. For the urinary protein, the sulfosalicylic acid method was the most sensitive test for any kinds of protein, and Multistix-SG appeared more sensitive than Comber-9-Test RL for the albuminuria. For the urinary bilirubin and glucose, two dipstick assays were similar in their diagnostic efficiency. Finally in the urinary occult blood tests, Comber-9-Test RL assays was more sensitive than Multistix-SG.

Radiology, Radiotherapy & Diagnostic Imaging
Ultrasonographic Features of Intra-abdominal Abscess.: Kil Ho Cho, Kyung Hee Jung, Mi Soo Hwang, Jae Chun Chang, Koing Bo Kwun, Hyun Sik Min; Yeungnam Univ J Med. 1985;2(1):87-93. Published online December 31, 1985; DOI: https://doi.org/10.12701/yujm.1985.2.1.87

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Abstract PDF: Intraabdominal abscess usually causes distress with fever, leukocytosis, pain and toxicity. Diagnosis of intraabdominal abscess is occasionally difficult and it has high morbidity. However radiologic method, such as ultrasonography, CT scan, or RI scan are helpful to early detection of intraabdominal abscess. Among these methods, ultrasonography is a noninvasive technique and performed without discomfort to patient. And also differential diagnosis between cystic and solid lesion is very easy and sequential ultrasonography in same patient is valuable for the evaluation of treatment effect. We analyzed the ultrasonic features of 48 cases with intraabdominal abscesses and the results are as follows; 1. In total 48 cases, the intraabdominal abscesses were 30 cases, the retroperitoneal abscesses, 5 cases, and the visceral abscesses, 13 cases. 2. The causes of the intraabdominal abscesses were perforating appendicitis (25 cases), postoperative complications (5 cases), pyogenic and amebic hepatic abscesses (13 cases), and the other (5 cases). 3. Round or oval shaped lesions were 26 cases (54%), irregular shape, 18 cases (38%), and multiple abscess formation in 4 cases (8%). 4. The size of the lesions were between 5 and 10cm in diameter in 54% of total 48 cases, and the most frequent feature of the echo pattern of the lesions was cystic with or without internal echogenicity (69%).

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