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- Seminal Vesicle Involvement by Carcinoma In Situ of the Bladder: Clonal Analysis Using Next-Generation Sequencing to Elucidate the Mechanism of Tumor Spread
- Hyun Sik Park, Hyun Bin Shin, Myung-Shin Lee, Joo Heon Kim, Seon-Young Kim, Jinsung Park
- Cancer Res Treat. 2020;52(4):1283-1287. Published online March 19, 2020
- DOI: https://doi.org/10.4143/crt.2020.002
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ePub - We present a rare case of urothelial carcinoma in situ (CIS), which invades the prostate and seminal vesicle (SV). A 70-year-old man underwent transurethral resection of bladder (TURB), and the pathologic examination revealed multiple CIS. Although the patient received intravesical bacillus Calmette-Guerin (BCG) therapy following TURB, recurrence of CIS was confirmed in the bladder and left distal ureter at 3 months following BCG. Radical cystectomy was performed due to BCG-refractory CIS. Microscopically, CIS was found throughout the mucosa of the bladder, left ureter, prostatic duct, and both SVs. Next-generation sequencing revealed significant differences in tumor clonality between bladder and SV CIS cells. Among 101 (bladder CIS) and 95 (SV CIS) somatic mutations, only two were shared, and only one gene (ARHGAP23) was common exon coding region gene. In conclusion, multicentric genetic changes, in line with the field-cancerization effect, may result in SV involvement by CIS of the bladder.
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- A Case of Synchronous Double Primary Cancer of the Penis and Urinary Bladder
- Yong Soo Cho, Jung-Ae Lee, Si Bum Kim, Soo Jung Gong, Joo Heon Kim, Seon Min Youn, Eun Tak Kim
- Cancer Res Treat. 2010;42(1):53-56. Published online March 31, 2010
- DOI: https://doi.org/10.4143/crt.2010.42.1.53
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Abstract
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Multiple primary cancers are the occurrence of more than two cancers of different origin in an individual. Penile cancer is a rare disease, and finding it combined with other cancers is even rarer. A 64-year-old man with a painful penile mass was referred to us from a primary urological clinic. We performed a biopsy of the penile mass and the histology revealed a well-differentiated squamous cell carcinoma. Abdominal computed tomography showed a localized bladder tumor with inguinal lymphadenopathy. The patient underwent a partial penectomy, transurethral resection of the bladder tumor and inguinal lymph node dissection. The histology of the bladder tumor was high-grade papillary carcinoma, and that of the lymph node was squamous cell carcinoma. The penile and bladder tumors were in stage II (T1N1M0) and stage I (T1N0M0), respectively. We successfully treated the patient with adjuvant radiotherapy and systemic chemotherapy.
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