A Case of Accessory Seminal Vesicle in the Rectal Mesentery

DOI Web Site Web Site 9 References

Bibliographic Information

Other Title
  • 直腸間膜内に認めた副精嚢の1例
  • 直腸間膜内に認めた副精囊の1例
  • チョクチョウ カンマク ナイ ニ ミトメタ フクセイノウ ノ 1レイ

Search this article

Abstract

<p>A 69-year-old man underwent computed tomography, which revealed a 12 mm sharply marginated nodular lesion with a contrast effect in the rectal mesentery. Magnetic resonance imaging (MRI) showed a low signal on a T1-weighted image, a high signal on a T2-weighted image, and a high signal on a diffusion-weighted image, while positron emission tomography-computed tomography (PET-CT) showed mild accumulation with SUV-max of 2.2. Endoscopic ultrasound fine needle aspiration (EUS-FNA) showed histological images of suspected cancer : nuclear enlargement and scattered atypical cells with high chromatin content. Immunohistochemical staining showed CK7(+), CK20(-), CD20(-), desmin(-), S-100(-), c-kit(-), synaptophysin(-) and chromogranin A(-), which was suggestive of an adenocarcinoma. The lesion was considered to be a primary tumor in the rectal mesentery. However, qualitative diagnosis was not made, and laparoscopic tumor resection was performed. The mass was an isolated lesion in the rectal mesentery. It was a 12 mm, yellowish white, sharply marginated solid mass. Pathologically, the lesion consisted of an ill-defined bilayer duct with lipofuscin granules and estrogen receptor-positive smooth muscle components. Since the mass was in the pelvis of the patient, it was diagnosed as an accessory seminal vesicle. We reported a case in which the accessory seminal vesicle found in the rectal mesentery was resected. Isolated accessory seminal vesicles are extremely rare. We reported one such case along with some literature review.</p>

Journal

References(9)*help

See more

Keywords

Details 詳細情報について

Report a problem

Back to top