Arai T, Miyano T, Tanno M, Kohno S, Hamasaki Y
Department of Paediatric Surgery, Juntendo University School of Medicine, Tokyo, Japan.
Z Kinderchir. 1990 Oct;45(5):311-3. doi: 10.1055/s-2008-1042608.
Anal duplication is a very rare abnormality, especially in infants. Two cases of tubular anal duplication of the infant and neonate are reported in this paper. In all cases, removal of the duplicated anus through the perineal approach was accomplished without difficulty. The histology revealed a squamous epithelium with smooth muscle component around the cavity, combined with collumnar or transitional epithelium. There was no evidence of inflammation. The postoperative courses were uneventful with satisfactory anal function. The definite aetiology of this condition is still unknown, although several hypotheses have been proposed.
肛门重复畸形是一种非常罕见的异常情况，尤其是在婴儿中。本文报告了两例婴儿和新生儿的管状肛门重复畸形病例。在所有病例中，通过会阴途径切除重复肛门均顺利完成。组织学检查显示，腔道周围为鳞状上皮并伴有平滑肌成分，同时伴有柱状或移行上皮。没有炎症迹象。术后过程平稳，肛门功能良好。尽管已经提出了几种假说，但这种情况的确切病因仍然未知。
