Chapter 31: Anorectum

Chapter 31. Anorectum

All of the following are sites of perirectal abscesses, except

A. Ischiorectal

B. Perianal

C. Intermuscular

D. Infralevator

E. Submucous

D. Infralevator

Anal bleeding can be commonly caused by

A. Diverticulitis

B. Anal condyloma

C. Anorectal abscess (undrained)

D. Anal fissure

E. Thrombosed external hemorrhoids

D. Anal fissure

Rectal prolapse

A. Can be distinguished from prolapsed hemorrhoids based upon imaging

B. Is an intussusception of the rectum

C. Cannot involve the muscular layers of the rectum due to fixation to the pelvic sidewalls

D. Is best evaluated by MRI

E. Is more common in men than women

B. Is an intussusception of the rectum

Epidermoid tumors of the anal canal

A. Are typically treated with a regimen of chemotherapy and radiation therapy after diagnosis

B. Are about as common as rectal cancers

C. Have a 25% response rate to initial therapy regimens

D. Typically require abdominoperineal resection for complete treatment

E. Rarely metastasize to regional lymph nodes

A. Are typically treated with a regimen of chemotherapy and radiation therapy after diagnosis

Management of condyloma acuminata

A. Are rarely transmitted by sexual contact

B. Are often treated with antiviral therapy as first line treatment

C. Can include palliation of macroscopic lesions my operation

D. Do not carry any risk of dysplasia

E. Are asymptomatic

C. Can include palliation of macroscopic lesions my operation