Isolated seminal vesicle metastasis from gastric adenocarcinoma: first case report

Year 2017, Volume: 34 Issue: 4, 279 - 282, 10.10.2019

Alparslan Serarslan Nilgun Ozbek Okumus Bilge Gürsel Deniz Meydan Şaban Sarıkaya Mehmet Kefeli Sibel Ucak

Abstract

A 49-year-old Turkish man underwent subtotal
gastrectomy for gastric cancer in February 2010. The cancer was staged as
pT4aN0M0R0. The patient received adjuvant chemoradiotherapy per the Intergroup
study 0116. Regular follow-up abdominopelvic computed tomography revealed a
contrast-enhancing right seminal vesicle lesion 35 months after gastric
surgery. Staging evaluation using (18) F-fluorodeoxyglucose positron emission
tomography/computed tomography revealed isolated seminal vesicle fluorodeoxyglucose
uptake. A right seminal vesiculectomy was then performed. Histologic
examination of the seminal vesicle specimen revealed that the sample was similar
to the original gastric adenocarcinoma. The tumor board recommended external
beam radiotherapy due to the close surgical margin, but the patient refused
treatment. Five months after right seminal vesiculectomy, tumor recurrence was
found. Tumor excision and left seminal vesiculectomy were performed, and 45 Gy external
beam radiotherapy was delivered to the region of recurrence in February 2014. As
of January 2016, the patient has had no complaints since the last radiation
treatment. In conclusion, we report the first case of isolated seminal vesicle
metastasis from gastric adenocarcinoma. Therefore, seminal vesicles should be
considered a potential recurrence site in primary gastric adenocarcinoma. The
combination of surgery and radiation (45 Gy dose) without chemotherapy appeared
to be successful in treating this gastric adenocarcinoma metastasis.

Keywords

Gastric cancer, Male urologic surgery, Metastasis, Radiotherapy, Seminal vesicles

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