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JYMS : Journal of Yeungnam Medical Science

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Young Jung Seo 2 Articles
Evaluation of Computed Tomography and Magnetic Resonance Imaging of Sinonasal Inverted Papilloma.
Chang Hoon Bai, Young Jung Seo, Seok Choon Lee, Seung Min Chen, Un Hoi Baek, Eun Chae Jung, Si Youn Song, Yong Dae Kim
Yeungnam Univ J Med. 2005;22(2):191-198.   Published online December 31, 2005
DOI: https://doi.org/10.12701/yujm.2005.22.2.191
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BACKGROUND
Computed tomography (CT) is commonly used to evaluate the degree of sinus involvement in cases of inverted papilloma (IP). However, CT cannot differentiate tumor from adjacent inflammatory mucosa or retained secretions. By contrast, magnetic resonance imaging (MRI) has been reported to be useful in distinguishing IP from paranasal sinusitis. This study investigated whether preoperative assessment with MRI and CT accurately predict the extent of IP. MATERIALS AND METHODS: CT and MRI were retrospectively reviewed in 9 cases of IP. Patients were categorized into stages based on CT and MRI findings, according to the staging system proposed by Krouse. The involvement of IP in each sinus was also assessed. RESULTS: Differentiation of IP from inflammatory disease may be more successful in routine cases where the inflammatory mucosa has low signal intensity on T1-weighted images and very high signal intensity on T2-weighted images. CT imaging could not differentiate tumor from adjacent inflammatory mucosa or retained secretions. CONCLUSION: Preoperative MRI of IP can predict the location and extent of the tumor involvement in the paranasal sinuses and sometimes predicts malignant changes.
Clinical Characteristics and Prognostic Factors of Nasopharyngeal Cancer.
Chang Hoon Bai, Young Jung Seo, Sang Baik Ye, Young Ho Choi, Yong Dae Kim, Si Youn Song
Yeungnam Univ J Med. 2005;22(1):72-80.   Published online June 30, 2005
DOI: https://doi.org/10.12701/yujm.2005.22.1.72
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BACKGROUND
Nasopharyngeal cancer is a rare disease with a relatively poor prognosis because it tends to be diagnosed at an advanced stage. The aim of this study was to establish the clinical characteristics of nasopharyngeal cancer. MATERIALS AND METHODS: The medical records of 54 patients with nasopharyngeal cancer from January 1993 to December 2002 were reviewed retrospectively. Forty one cases were male (75.9%) and thirteen were female (24.1%). The average age was of 46.9 (range 16 to 78 years) years. The majority of patients (79.6%) were diagnosed in the advanced stage. The most common complaints were a neck mass (55.5%) and the WHO type III (53.7%) was the most frequent histological type. RESULTS: The cumulative survival rate for a 5-year period was 46.5% and the T stage, N stage, pathologic type, and clinical stage were not significantly related to the survival rate. Sixteen of 54 (31.5%) cases presented with a distant metastasis of the bone, lung, brain, spine, and liver, and six cases (11.1%) presented with a locoregional recurrence. CONCLUSION: TNM staging is not appropriate for predicting survival rate of nasopharyngeal carcinoma patients. Therefore, a newer staging system, which includes new factors, is needed to predict the prognosis.

JYMS : Journal of Yeungnam Medical Science