Anorectal Disease Flashcards
what are 1y anorectal lesions?
fissures, ulcers
what are 2y anorectal lesions?
abscess, tags, fistula
incidental anorectal lesions?
piles, hidradenitis
key hx qs for anorectal lesions?
symptoms? first episode? bleeding-fresh or dry? dripping or on paper? pain- sharp? dull? anything protruding through back passage? discharge?
are haemorrhoids common?
yes
what are haemorrhoids?
enlarged vascular cushions in lower rectum and anal canal
presentation of haemorrhoids?
painless fresh bleeding on paper, perianal itching, maceration of perianal skin
sites of haemorrhoids?
correspond to branches of superior haemorrhoidal artery occurring at 3,7,11 o’clock of pr in lithotomy position
ix for haemorrhoids
PR exam, sigmoidoscopy, protoscopy
Mx for haemorrhoids?
sclerosation therapy, rubber band ligation, haemerrhoidectomy (open/ stapled), HALO/THD procedure (cutting off vascular supply to haemorrhoids)
what are the classes of rectal prolapse?
partial (anterior or mucosal prolapse)
complete (full thickness)
presentation of rectal prolapse?
protruding mass from anus during defaecation, rectal bleeding/discharge, poor anal tone
Mx for rectal prolapse?
partial: dietary advice, tx for constipation (kids), haemorrhoids tx (adults)
complete: bulking agent, Delorme’s procedure, rectopexy
what are anal fissures?
tear in anal margin due to passage of constipated stool
aetiology of anal fissures?
constipates stool, Crohn’s (multiple fissures)
presentation of anal fissures?
acute onset of severe sharp anal pain following episode of constipation, fresh rectal blood
what is anal fissure pain often likened to?
glass passing
tx for anal fissures?
dietary advice, stool softeners, sphincterotomy (GTN or botox injection)
what is a fistula in ano?
abnormal communication between 2 epithelial surfaces- 1 internal, 1 external opening on peri-anal skin
aetiology of fistula in ano?
Crohn’s, TB, carcinoma or due to inadequate/delayed tx for anorectal abscess
ix for fistula in ano?
EUA of anorectum, rigid/flexible sigmoidoscopy, proctoscopy, MRI
Mx for fistula in ano?
staged fistulotomy, glue
complications of fistula in ano?
pain, bleeding, incontinence, recurrence