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Bong Kwon Chun 11 Articles
Comparison of the prevalence and histology between primary benign bladder tumors and recurrent benign lesions after transurethral resection of malignant bladder tumors
Jae Jin Baek, Yong Deuk Seo, Dong Ha Kim, Won Tae Seo, Su Hwan Kang, Taek Sang Kim, Bong Kwon Chun
Kosin Med J. 2023;38(1):43-49.   Published online February 17, 2023
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Abstract PDFPubReader   ePub   
Benign bladder tumors are rare disease entities, and insufficient studies have assessed their epidemiological characteristics. The authors investigated the prevalence of benign bladder tumors by retrospectively investigating pathology reports of transurethral resection of bladder tumor (TURBT) procedures over the past 20 years.
We analyzed 1,674 pathology reports of TURBT conducted in 1,160 patients from January 1, 2000, to April 30, 2022. The prevalence of benign tumors and histological classification according to the presence of primary (group 1) and recurrent (group 2) bladder lesions were retrospectively investigated.
The mean age of patients was 65.2±11.5 years, and 1,284 cases (79.1%) were in men. Benign bladder tumors comprised 278 cases (248 patients) accounting for about 17.1% of the total TURBT cases (278/1,624). Furthermore, 184 patients (16.0%, 184/1,147) belonged to group 1 and 78 patients (27.4%, 78/285) belonged to group 2. Among all benign lesions that underwent TURBT, cystitis was the most common (41.0%, 114/278), and this rate was higher in group 2 (64/184 [34.8%] vs. 50/94 [53.2%], p<0.001). The prevalence of non-neoplastic lesions was higher in group 1 (44/184 [23.9] vs. 11/94 [11.7%], p<0.001). There was no difference in the prevalence of noninvasive urothelial neoplasms between the two groups (22/184 [12.0%] vs. 8/94 [8.5%], p=0.86).
The probability of benign lesions in TURBT was 17.1%, among which cystitis was the most common. When TURBT was performed for recurrent lesions, the frequency of benign tumors was higher than that of primary benign bladder tumors.
Metachronous anterior urethral metastasis of prostatic ductal adenocarcinoma
Jeong Hyun Oh, Taek Sang Kim, Hyun Yul Rhew, Bong Kwon Chun
Kosin Med J. 2016;31(1):66-70.   Published online February 4, 2016
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Abstract PDFPubReader   ePub   

Prostate cancer is increasing in frequency in Korea. Among them, ductal adenocarcinoma (DCP) has a more aggressive and poor prognosis than acinar adenocarcinoma (ACP), despite its low incidence. Patients usually present with symptoms of lower urinary tract symptoms and hematuria due to increasing tumor mass within the lumen of the prostatic urethra, making diagnosis of DCP by the transrectal prostate biopsy difficult. DCP is often metastasized at the time of diagnosis. DCP is transferable to most other organs but the metastasis to the anterior urethra is rare. There is no doubt that localized DCP requires radical prostatectomy (RP) but the guidelines for adjuvant therapy after RP have not yet been established. Methods of the treatment are confounded by individual differences, and arriving at a consensus is challenging due to insufficient data. We report a case of DCP and urethral metastasis after RP, thus aiding in the determination of treatment guidelines.

A Case of Tracheobronchopathia Osteochondroplastica Diagnosed by Endobronchial Ultrasonography
Cheun Woo Lee, Chul Ho Oak, Man Hong Jung, Man Hong Jung, Tae Won Jang, Seung Kyeong Lim, Eun Ju Cho, Shin Jun Lee, Hae Won Lee, San Geon Gwoo, Bong Kwon Chun
Kosin Med J. 2011;26(2):197-201.   Published online December 1, 2011
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The Effect of Percutaneous Intratumoral OK-432 Injection for Treatment of Advanced Lung Cancer
Su Hyeon Jung, Sung Bin Kim, Jin Hee Park, Hee Sang Tag, Chul Ho Oak, Tae Won Jang, Man Hong Jung, Bong Kwon Chun
Kosin Med J. 2009;24(2):81-85.   Published online December 31, 2009
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Risk Factors of Lymph Node Metastasis in Colon Cancers
Dong Min Hong, Bong Kwon Chun, Hee Kyung Chang
Kosin Med J. 2009;24(2):130-134.   Published online December 31, 2009
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Metachronous Squamous Cell Carcinoma of Renal Pelvis in Patient with Colonic Cancer Twenty Years after Surgery
Bong Kwon Chun, Hyun Yul Rhew
Kosin Med J. 2009;24(2):250-253.   Published online December 31, 2009
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A Case of Invasive Ductal Carcinoma Arising Within Fibroadenoma
Min Jung Jung, Bong Kwon Chun
Kosin Med J. 2006;21(2):145-147.
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Scanning Electron Microscopic Study for Morphological Changes of Microvasculature in Experimental Hepatic Fibrosis
Bang Hur, Myung Jong Lee, Bong Kwon Chun, Dong Hun Shin, Chung Han Lee
Kosin Med J. 2004;19(1):19-25.
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Prognostic Significance of Cyclin E, p27, and pRb in Stage I Non-Small Cell Lung Cancer
Bong Kwon Chun, Bhong Gyun Jo, Sung Rae Cho
Kosin Med J. 2003;18(1):27-35.
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Thyroid Lesions among Koreans - A statistical study on cases -
Bong Kwon Chun, Hee Kyung Chang, Bang Hur, Man Ha Huh
The Journal of Kosin Medical College. 1989;5(2):37-54.
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KMJ : Kosin Medical Journal