Johnston D W
Can J Surg. 1978 May;21(3):241-4.
Seven cases of annular pancreas are described. In all the diagnosis was confirmed at autopsy or at operation. This study provides a new, original classification for annular pancreas. Two distinct subtypes are described: type 1, extramural and type 2, intramural. In type 1 the presenting symptoms are those of high gastrointestinal obstruction. In type 2 the symptoms are those of duodenal ulceration. For extramural obstructing annuli surgical intervention, if indicated, should be a bypass procedure; for intramural types with duodenal ulcer, subtotal gastrectomy with or without vagotomy is the procedure of choice.
本文描述了7例环状胰腺病例。所有病例均在尸检或手术时确诊。本研究为环状胰腺提供了一种新的、原创性的分类方法。文中描述了两种不同的亚型：1型，壁外型；2型，壁内型。1型的主要症状为高位胃肠道梗阻。2型的症状为十二指肠溃疡。对于壁外梗阻型环状胰腺，如有手术指征，应采用旁路手术；对于伴有十二指肠溃疡的壁内型，首选的手术方式是胃大部切除术，可选择行或不行迷走神经切断术。
