Schwannoma of the seminal vesicle in a patient with rectal cancer

Jared Rocky Funston, Charles Le Vea, Ashwani Rajput


Introduction: Schwannomas are benign tumors arising from the cells responsible for producing the myelin sheath surrounding peripheral nerve cells.

Presentation of case: A patient presented with intermittent bloody stools and diarrhea. Following a work-up, including colonoscopy, computed tomography (CT) scan, and endorectal ultrasound and biopsy, he was found to have a clinical T3N1 rectal adenocarcinoma. The CT scan also showed an incidental mass in the right seminal vesicle that on biopsy was consistent with a benign stromal nodule. After neoadjuvant chemoradiation, a low anterior resection (LAR) and concomitant resection of the right seminal vesicle was performed. Pathologic evaluation of the right seminal vesicle revealed a benign schwannoma.

Discussion: This unusual case of a solitary schwannoma of the seminal vesicle in a patient with a locally advanced rectal adenocarcinoma illustrates the difficulty in diagnosing these rare lesions because of their generally asymptomatic nature.

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Case Reports in Clinical Pathology

ISSN 2331-2726(Print)  ISSN 2331-2734(Online)

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