Colorectal Cancer: Epidemiology, Etiology, and Molecular Basis
Fig. 38.1 Age-adjusted colorectal cancer incidence and death rates in the USA 1975–2006 CRC in the USA over a lifetime is 5.5 % in men and 5.1 % in women….
Fig. 38.1 Age-adjusted colorectal cancer incidence and death rates in the USA 1975–2006 CRC in the USA over a lifetime is 5.5 % in men and 5.1 % in women….
Epidemiology Race/ethnicity: Whites and Blacks > Hispanic, Native American, Asian Jews > Non-Jews Geography: Northern climates > Southern Scandinavia, North America, Europe > Asia, Africa, South America, Japan, Spain Gender:…
Protection of distal anastomosis Treatment of anastomotic leak Large bowel obstruction Bowel perforation Abdominal or perineal trauma Rectal injury Diverticular disease Complex anorectal disease Complications from radiation Fecal incontinence Inflammatory…
Fig. 15.1 Incision and drainage of an acute pilonidal abscess. An incision is made parallel to the midline at least 1 cm laterally. A small ellipse of skin is removed…
Diverticulosis Asymptomatic Diverticulitis Noninflammatory Symptoms without inflammation Acute Symptoms with inflammation Simple Localized Complicated With perforation Chronic Persistent, low grade Atypical Symptoms without systemic signs Recurring, persistent Symptoms with…
Fig. 43.1 (a–c) Transanal excision. (a) A transanal excision is performed by marking out a 1 cm or greater margin around the tumor. (b) A full-thickness excision is then performed…
Age of diagnosis A1 <16 years A2 17–40 years A3 >40 years Location L1 ileal L2 colonic L3 ileocolic L4 isolated upper Behavior B1 nonstricturing nonpenetrating B2 stricturing B3 penetrating …
Type of test Measured modality Primary indication Test of function Anorectal manometry Function of anal sphincter Fecal incontinence, nonrelaxation of the pelvic floor, Hirschsprung’s disease Rectoanal reflexes Anorectal sensation Rectal…
Fig. 20.1 (a, b) Terminology for location of anal and perianal lesions. Tumors A, B, and C represent ANAL lesions that are not visible or are incompletely visible while gentle…