Perirenal venous aneurysm presenting as retroperitoneal tumor treated successfully by laparoscopic excision.
We describe an unusually located venous aneurysm found incidentally in a 46-year-old man that was presumptively diagnosed as a retroperitoneal mass near the left renal hilum. He presented for constipation and weight loss; an abdominal ultrasound scan disclosed an anechoic lesion in the left retroperitoneum. Abdominal CT showed a 3-cm mass with low density located at the junction of the left para-aortic and perirenal hilar regions that was initially suspected of being metastatic lymphadenopathy with an unknown primary origin or a neurogenic tumor. The mass was resected by a laparoscopic approach, which revealed a round mass with a smooth capsule and roots connecting to the paraspinal muscles. On pathologic examination, the mass showed classic features of a venous aneurysm. At 12-month follow-up, no local recurrence or malignancy was documented.
Division of Urology, Department of Surgery, Far-Eastern Memorial Hospital, Taipei Taiwan.
Shiu-Dong
SD
Chung
Kuo-How
KH
Huang
Huai-Ching
HC
Tai
Shun-Fa
SF
Hung
Shih-Chieh
SC
Chueh
Hong-Jeng
HJ
Yu
D000783:Aneurysm / Q000175:diagnosis* / Q000601:surgery*; D003937:Diagnosis, Differential; D006801:Humans; D010535:Laparoscopy; D008206:Lymphatic Diseases / Q000175:diagnosis; D008297:Male; D008875:Middle Aged; D015609:Organotechnetium Compounds; D012082:Renal Veins; D012186:Retroperitoneal Neoplasms / Q000175:diagnosis*
D015609:Organotechnetium Compounds; C116453:cyclopentadienyl tricarbonyl technetium