Suda K, Matsumoto Y, Miyano T
Department of Pathology, Yamanashi Medical University, Japan.
Am J Gastroenterol. 1991 Sep;86(9):1259-63.
"Narrow segments" (or stenotic portions) of the common bile duct (CBD) distal to cysts in two patients (a 50-yr-old woman and a 25-yr-old man) with choledochal cyst (CholCyst) were studied macroscopically and histologically. The narrow segments of the ducts were patent and connected with the main pancreatic duct extraduodenally, whereas the CBD in controls were neither dilated nor stenotic, and joined the main pancreatic duct within the duodenal wall. These narrow segments were 1 cm long. In case 1, a minute orifice was found in the narrow segment of the duct macroscopically and was identified microscopically as a small duct from a pancreatic lobule. In case 2, a small pancreatic duct also joined the narrow segment of the duct. These small pancreatic ducts were derived from the ventral pancreas, based on distribution of PP-islets. Therefore, the narrow duct distal to the cyst in patients with CholCyst (or congenital biliary dilatation) was considered to be a branch of the ventral pancreatic duct.
对两名患有胆总管囊肿（CholCyst）的患者（一名50岁女性和一名25岁男性）囊肿远端胆总管（CBD）的“狭窄段”（或狭窄部分）进行了大体和组织学研究。这些狭窄段的胆管通畅，在十二指肠外与主胰管相连，而对照组的胆总管既不扩张也不狭窄，并在十二指肠壁内与主胰管相连。这些狭窄段长1厘米。在病例1中，在狭窄段胆管的大体检查中发现一个微小开口，显微镜下鉴定为来自胰腺小叶的小导管。在病例2中，一条小胰管也与狭窄段胆管相连。根据PP胰岛的分布，这些小胰管来自腹侧胰腺。因此，患有胆总管囊肿（或先天性胆管扩张）患者囊肿远端的狭窄胆管被认为是腹侧胰管的一个分支。
