title: Long-term survival after hand-assisted laparoscopic approach of primary retroperitoneal mucinous cystadenocarcinoma in male: case report and review of literature.
abstract: Primary retroperitoneal mucinous cystadenocarcinoma (PRMC) is a rare disease and mostly occurs in females, and there are only three male cases described in the literatures without long-term follow-up.
  
  
  
  A 59-year-old male presented with a left retroperitoneal cystic mass (7.5 ´ 7 ´ 3 cm) that upwardly displaced the left kidney and caused abdominal discomfort. The tumor was totally excised by the hand-assisted laparoscopic method without complications or recurrence in a follow-up period of 79 months. The etiology from coelomic metaplasia of peritoneal epithelium was proved by a spectrum of diverse cells (benign, borderline malignant, and malignant cells) during pathological examination.
  
  
  
  This is the fourth male case of PRMC in the world with a favorable outcome after hand-assisted laparoscopic excision, and this is also distinct by the longest follow-up period in this disease entity.
  
  
  
  Because of its low-malignant potential and recurrence rate, surgical excision is still the best choice of treatment, but the least invasion method should be adopted in front.
authors: Department of Surgery, Chang Gung Memorial Hospital and Chang Gung University, No. 5, Fuxing St., Guishan Township, 333 Taoyuan County, Taiwan (R.O.C.).
authors: J-P
authors: JP
authors: Shiau
authors: C-T
authors: CT
authors: Wu
authors: C-C
authors: CC
authors: Chin
authors: C-K
authors: CK
authors: Chuang
keywords: Laparoscopy; Male; Primary mucinous cystadenocarcinoma; Retroperitoneal
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