Hardly any other part of the human body is of such interdisciplinary interest as the anal, perianal and rectal region. Gastroenterologists, dermatologists, urologists, general practitioners and surgeons specialising in proctology, phlebology, and coloproctological surgery are involved in this region between the ectoderm, transitional zone, and entoderm.
Diagnostic procedures, such as endoscopy, radiology, sonography, manometry, electromyography, and histopathology are even more diverse, in particular where the differential diagnosis of non-neoplastic conditions of the anorectal region...