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Gastrointestinal
Anorectal
48
Medical
Graduate
01/24/2010

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Cards

Term
Cushions of tissue and dilated or enlarged veins in the lower portion of the rectum or anus.
Definition
Hemorrhoids
Term
What are the 2 types of hemorrhoids?
Definition
Internal (both inside and above anus) and external (under the skin and around the anus)
Term
Describe 1st and 2nd degree internal hemorrhoids.
Definition
1st - bleeding but no prolapse. 2nd - prolapse outside anal canal upon defecation but retract spontaneously.
Term
Can 3rd or 4th degree internal hemorrhoids be manually reduced?
Definition
3rd. 4th has strangulation.
Term
The major drainage of the hemorrhoidal plexus is through the ____________ which drains into the inferior mesenteric vein and portal system.
Definition
Superior hemorrhoidal vein
Term
What precipitating factors lead to the dev. of hemorrhoids?
Definition
Inc. intra-abdominal pressure impairing venous return (pregnancy, ascites, exercise, straining, tumors) or systemic or portal venous HTN (CHF or cirrhosis)
Term
What is the most significant sx of hemorrhoids?
Definition
rectal bleeding (bright red blood)
Term
Are internal hemorrhoids typically painful?
Definition
No
Term
What are conservative tx measures for hemorrhoids?
Definition
High fiber diet and inc. fluid intake, Anusol HC suppositories
Term
What medical txs are available for stage I, II, and III hemorrhoids w/ recurrent bleeding despite conservative measures?
Definition
Rubber band ligation, sclerotherapy, or infra-red photocoagulation
Term
When are surgical hemorrhoidectomies performed?
Definition
Chronic severe bleeding d/t stage III or IV or acute thrombosed stage IV
Term
A condition characterized by acute onset of an intensely painful and violet perianal nodule covered w/ skin.
Definition
Thrombosed external hemorrhoid
Term
Describe the clinical presentation in a pt w/ fecal impaction.
Definition
Constipation or fecal incontinence, acute abd pain, or chronic LBO
Term
What types of pts are prone to fecal impaction?
Definition
Spinal cord injury, bed-bound, CVA, narcotic meds, complication of anorectal procedures
Term
What is the tx for fecal impaction?
Definition
1-2 fleet enemas followed 1 hr later by mineral oil enema, manual disimpaction usu. required
Term
A collection of pus in one of the anatomic spaces of the anal region resulting from blockage of the anal glands.
Definition
Anorectal abscess
Term
What is the most common location of anorectal abscesses?
Definition
Perianal
Term
Anorectal abscesses are usually polymicrobial but >90% will include what?
Definition
E. coli
Term
Pt w/ these types of anorectal abscesses usu. present w/ fever and pain but no obvious abnormality on exam.
Definition
Intersphincteric or supralevator abscess
Term
An _______ abscess usu. presents as a lg. tender fluctuant mass of the buttock.
Definition
Ischiorectal
Term
What is the tx for anorectal abscess?
Definition
Surgically draining the infected cavity
Term
A complication of anorectal abscess that is an abnormal passage b/t perianal skin and the interior of the anal canal or rectum.
Definition
Fistula-in-Ano
Term
90% of fistula-in-ano cases are of what origin?
Definition
Cryptoglandular
Term
A guide to finding the internal opening of a fistula based on the external opening.
Definition
Goodsall's Rule
Term
What is the conservative tx for fistula-in-ano?
Definition
fibrin adhesive injection
Term
What is the surgical tx for uncomplicated fistulas?
Definition
Fistulectomy
Term
A longitudinal cut in the anoderm causing a painful linear ulcer at the margin of the anus.
Definition
Anal fissures
Term
90% of anal fissures occur in the _______ and 10% occur in the ________.
Definition
Posterior midline. Anterior midline.
Term
What diseases may cause lateral anal fissures? (6)
Definition
1)Crohn's 2)TB 3)Syphilis 4)Anal CA 5)Leukemia 6)HIV
Term
What is the typical c/o in pts w/ anal fissures?
Definition
Severe pain, c/o passing "razor blades"
Term
What classic triad of s/sx on PE is considered diagnostic for anal fissures?
Definition
Tender, skin tag distal to fissure, hypertrophied anal papilla
Term
What dietary modification is rec. for anal fissure?
Definition
High fiber/inc. fluid
Term
What meds are used to tx anal fissure?
Definition
Sitz baths, stool softeners, Anusol HC or Canasa (mesalamine), nitroglycerin cream 0.2%, CCB
Term
what is the standard tx for chronic anal fissure? Post-partum tx?
Definition
Lateral anal sphincterectomy. Advancement flap.
Term
Are pilonidal cysts more common in men or women? What age does infection MC occur?
Definition
Men 4:1. Puberty and 30yo.
Term
Pilonidal cysts are AKA what?
Definition
Jeep Rider's dz (repeated trauma to the gluteal region)
Term
Name 3 predisposing factors to pilonidal cysts.
Definition
Obesity, body hair in the area, sedentary lifestyle
Term
What are the sx of pilonidal cysts?
Definition
Asymptomatic unless infected - can cause abscess - fistula
Term
How can the first episode of pilonodal cysts be treated?
Definition
Cephalexin (Keflex) or Amoxicillin-clavulanate (Augmentin)
Term
what is the only way to cure pilonodal cysts?
Definition
Surgery (open-technique*, closed marsupialization, Z-plasty)
Term
What is the MC STD of the anus and rectum?
Definition
Condylomata Acuminata (anal or perianal warts)
Term
What is the etiologic agent for anal warts?
Definition
HPV - 6 and 11 most common
Term
What subtypes of HPV are associated w/ squamous cell CA?
Definition
16, 18, 31, and 32
Term
What are the sx of anal warts?
Definition
Pruritis. Rarely bleed or painful.
Term
What med that is cytotoxic to condylomas can be used to tx HPV? What can they not be used for?
Definition
Podophyllin. Anal canal lesions.
Term
Who are the majority of pts that present w/ anal CA?
Definition
Women in 7th decade present w/ bright red stools and pain
Term
What type of CA makes up the majority of all primary CA of the anus?
Definition
Squamous cell CA
Term
What is used to dx and tx anal CA?
Definition
Surgery
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