Retroperitoneal bronchogenic cyst mimicking pancreatic cystic lesion.
Retroperitoneal bronchogenic cyst is detected extremely rarely and often masquerades as other diseases. Here, we report 2 cases of retroperitoneal bronchogenic cyst mimicking pancreatic mucinous tumor. Histologically, both cysts were composed of ciliated respiratory-like epithelium with abundant mucin content, smooth muscle bundles and mature cartilage, compatible with the diagnosis of retroperitoneal bronchogenic cyst. In addition to these 2 cases, another 42 retroperitoneal bronchogenic cysts reported in the English literature were collected for review and analysis. Twelve (28%) were located over the peripancreatic area. Just over half (51%) of them were asymptomatic. No accurate preoperative diagnosis could be made for any of the lesions. About a third (33.3%) of the peripancreatic retroperitoneal bronchogenic cysts masqueraded as pancreatic cystic lesions.
Wang
Shin-E
SE
Department of Surgery, Taipei Veterans General Hospital, Taipei, Taiwan.
Tsai
Yi-Fang
YF
Su
Cheng-Hsi
CH
Shyr
Yi-Ming
YM
Lee
Rheun-Chuan
RC
Tsai
Wan-Chen
WC
Li
Fen-Yau
FY
Chen
Tien-Hua
TH
Wu
Chew-Wun
CW
Lui
Wing-Yiu
WY
D000368:Aged; D001994:Bronchogenic Cyst / Q000473:pathology*; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D010181:Pancreatic Cyst / Q000473:pathology*; D012187:Retroperitoneal Space