Detry R
Acta Chir Belg. 1985 Sep-Oct;85(5):313-7.
Parks' classification of the anal fistulas is based on the knowledge of the pathogenesis of the disease. It relates fistula tracks to the anatomy of the anorectal musculature. Four main types are described, with some variations in each group: inter-, trans-, supra- and extrasphincteric fistulas. A circumferential spread occurs in the horseshoe fistulas. Positive diagnosis of fistula is difficult when the secondary opening lies distant from the anus. Aetiological factors, topography of the tracks, and clinical form (benign or necrotizing fasciitis) are systematically established. Anal fistulas must be differentiated from other suppurations of the anorectal area: intestinal (tumours, actinomycosis, piles,...) and extravisceral diseases (pilonidal cyst, hidradenitis suppurativa, bartholinitis...).
帕克斯肛瘘分类法基于对该疾病发病机制的认识。它将瘘管路径与肛门直肠肌肉组织的解剖结构相关联。描述了四种主要类型，每组有一些变体：括约肌间、括约肌跨越、括约肌上和括约肌外肛瘘。马蹄形肛瘘会出现环形扩散。当继发开口远离肛门时，肛瘘的阳性诊断很困难。系统地确定病因、瘘管路径的形态以及临床类型（良性或坏死性筋膜炎）。肛瘘必须与肛门直肠区域的其他化脓性疾病相鉴别：肠道疾病（肿瘤、放线菌病、痔疮等）和内脏外疾病（藏毛窦、化脓性汗腺炎、巴氏腺炎等）。
