Abdominal Key

1. At least three relatives with histopathologically verified colorectal cancer; one must be a first-degree relative of the other 2. At least two successive generations affected 3. At least one…

Fig. 5.1 Anal fissure. Internal anal sphincter at the base of the fissure (Courtesy of Dr. J.V. Roig) Coloproctologists will probably see more chronic than acute fissures because primary care…

Fig. 31.1 Large rectal polyp Fig. 31.2 Colon cancer Fig. 31.3 Colonic diverticula Fig. 31.4 Angiodysplasia Fig. 31.5 Hemorrhoids Therapeutic procedures performed Biopsy sites Complications Recommendations/plan 31.2.2 Colonoscopy The designation…

Mechanical Non-mechanical Tumor Ogilvie syndrome Volvulus Paralytic ileus Diverticulitis Constipation Fecal impaction Dysfunction Anastomotic stricture  Ulcerative/Crohn’s colitis Benign stenosis Ischemia, endometriosis, rare entities 33.3 Symptoms Symptoms of LBO depend on…

Fig. 2.1 Arterial supply of the colon 2.2.3.1 Superior Mesenteric Artery The superior mesenteric artery supplies the cecum, appendix, ascending colon, and two thirds of the transverse colon. Ileocolic Artery…

  Benign Malignant Congenital tumors Developmental tumors: tailgut cyst (cystic mucinous hamartoma), teratoma, rectal duplication, epidermoid cyst, dermoid cyst Anterior sacral meningocele Chordoma Teratocarcinoma Neurogenic tumors Neurofibroma Neuroblastoma Ependymoma Schwannoma…

Fig. 3.1 Rectal motor complex Two types of change in rectal tone have been described: Rapid-volume waves Slow-volume waves Rapid-volume waves last less than 2 min and are associated with…

Fig. 9.1 Endoanal ultrasound showing intact internal and external sphincters (a) and lesions of the internal and external sphincters (b) (Courtesy G. Santoro; Treviso) The anatomy and its potential defects…

Fig. 35.1 Topography of perineal nerve distribution: (a) iliohypogastric area; (b) pudendal nerve area; (c) inferior cluneal nerve area Pudendal nerve area Iliohypogastric area Inferior cluneal nerve area Third, the…

Fig. 20.1 An endometriotic nodule infiltrating the intestinal wall to the submucosal layer. (a) lumen reduction, (b) fibrotic core 20.2 Incidence and Epidemiology Endometriosis affects 6–10 % of all women…