title: Primary paraganglioma of seminal vesicle.
abstract: BACKGROUND
  Paragangliomas are rare tumors arising from neural crest tissue located outside the adrenal gland. Primary seminal vesicle paraganglioma is extremely rare entity.
  
  
  METHODS
  A 26-year-old male patient presented with symptoms and signs of acute appendicitis where a CT of abdomen and pelvis showed an inflamed appendix and incidental finding of left seminal vesicle mass. The patient underwent uneventful laparoscopic appendectomy followed by transrectal ultrasound (TRUS) guided seminal vesicle biopsies. Histopathology revealed a neuroendocrine neoplasm consistent with paraganglioma. Surgical excision of the left seminal vesicle was carried out.
  
  
  CONCLUSIONS
  Paraganglioma of genitourinary tract is rare. The urinary bladder is the most common site, followed by the urethra, pelvis and ureter. Seminal vesicle paragangliomas were reported in association with other genitourinary organ involvement such as bladder and prostate. Isolated seminal vesicle paraganglioma is extremely rare and surgical excision remains the standard treatment for localized paraganglioma.
  
  
  CONCLUSIONS
  Primary tumors of seminal vesicle are rare and represent a diagnostic challenge. Differential diagnosis includes a list of benign and malignant tumors. Primary seminal vesicle paraganglioma is a rare but important diagnosis to be included in the differential diagnosis.
authors: Department of Urology, Prince Sultan Military Medical City, Riyadh, Saudi Arabia. Electronic address: dr__badr@hotmail.com.
authors: Badr
authors: B
authors: Alharbi
authors: Abdullah
authors: A
authors: Al-Ghamdi
keywords: Paraganglioma; Seminal vesicle; Seminal vesicle tumor
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