Sternberg A, Zelikovski A, Abu-Dalu J, Urca I
Int Surg. 1978 Mar;63(3):170-2.
All reported cases of annular pancreas consist of histologically normal pancreatic tissue. The most widely accepted theory of the pathogenesis of the pancreatic annulus agrees with, and is partially based on this fact. The pancreatic annulus encircling the stenotic second part of the duodenum in our patient was composed of fibromuscular tissue with lymph glands and a few pancreatic acini scattered among the smooth muscle fibers. This unique histologic variant of annular pancreas possible arose from a double fault in the ventrial anlage of the embryonal pancreas: faulty rotation (giving rise to the annular malformation) and abnormal histologic structure.
所有报告的环状胰腺病例均由组织学上正常的胰腺组织构成。关于胰腺环形成的发病机制，目前被广泛接受的理论与这一事实相符，且部分基于此事实。在我们的患者中，环绕十二指肠狭窄第二部的胰腺环由纤维肌肉组织、淋巴结以及散在于平滑肌纤维中的少数胰腺腺泡组成。这种环状胰腺独特的组织学变异可能源于胚胎胰腺腹侧原基的双重缺陷：旋转异常（导致环状畸形）和组织结构异常。
