Fig. 50.1 Transanal procedure. (a) Exposure and placing traction sutures. (b) Start full thickness rectal dissection above pectinate line. (c) Pulling rectosigmoid down Full-thickness biopsies are taken to determine the…
Potential space Superior border Anterior border Inferior border Posterior border Lateral border Medial border Other features Perianal space Anal verge Becomes continuous with the ischioanal fat Lower portion of anal…
Fig. 17.1 Gram-negative intracellular diplococcus Peak incidence for all forms of gonorrhea is in the late teens for females and early 20s for males. African Americans have a 30-fold higher…
Fig. 23.1 Plain abdominal X-ray of sigmoid volvulus indicating the “bent inner-tube” sign In up to 40 % of cases, the plain film can be equivocal: there may be superimposition…
Transabdominal procedures 1. Repair of the pelvic floor Abdominal repair of levator diastasis Abdominoperineal levator repair 2. Suspension–fixation Sigmoidopexy (Pemberton–Stalker) Presacral rectopexy Lateral strip rectopexy (Orr–Loygue) Anterior sling rectopexy (Ripstein)…
Fig. 19.1 (a, b) Digitally enhanced MRI reconstruction of the levator ani at rest in a 23-year-old nulliparous woman. The levator ani gives a biconcave shape posteriorly and the puborectalis…
Fig. 1.1 Anal canal The “anatomic” or “embryologic” anal canal is only 2.0 cm long, extending from the anal verge to the dentate line, the level that corresponds to the…
Fig. 44.1 Schematic representation of the correct TME dissection versus an incorrect dissection. The dissection should proceed between the mesorectal fascia and the pelvic wall fascia to ensure a “complete”…
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….
