PMID: 16536055Mar 16, 2006Paper

Histotopographic study of the rectovaginal septum

Italian Journal of Anatomy and Embryology = Archivio Italiano Di Anatomia Ed Embriologia
C SteccoR De Caro

Abstract

The rectovaginal septum (RVS) is described as a strong connective tissue between the rectum and the vagina. The aim of the present study was to investigate the topography and histological structure of the RVS in 20 cadavers (age range: 54-72 years). After in situ formalin fixation, the pelvic viscera and the surrounding connective tissue were removed, together with the pelvic floor. In 8 cases, the topographical relationships of the septum with the vagina and rectum were studied during dissection. In 8 other cases, serial macrosections of the bladder base, vagina, lower rectum and pelvic floor complex were stained with hematoxylin-eosin, azan-Mallory and Weigert Van Gieson. RVS thickness was evaluated on transverse sections collected at the cranial and caudal levels of the middle third of the vagina (level II) and inferior third (level III). In the other 4 cases, specimens were cut with a slicer in 2-3 mm thick axial slices and plastinated using the von Hagens E12 technique. The RVS is located in an oblique coronal plane, close to the posterior vaginal wall, and is formed of a network of collagen, elastic fibres, smooth muscle cells with nerve fibres, emerging from the autonomic inferior hypogastric plexus, and variable numbers...Continue Reading

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