Gastoenterology Flashcards

0
Q

Colonic adenoma with highest risk of CA

A

Villous adenoma (40%) > Sessile serrated adenoma (20%) > Tubular adenoma (5%)

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1
Q

1st lesion in Ulcerative colitis

A

Apthous ulcer

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2
Q

Diverticulosis has thin walls due to lack of this layer

A

absent muscularis propia

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3
Q

MC site of Juvenile polyp, Peutz-Jeger hamarthromatous polyps, Hypertrophic polyps

A
Juvenile polyp
- pedunculated, rectal
Peutz-Jeger hamarthromatous polyps
- sessile, small intestine
Hypertrophic polyps
- sessile, left colon
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4
Q

Carney’s triad

A

Paraganglioma
Gastric GIST
Pulmonary chondroma

(dx if GIST - c-Kit)

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5
Q

Salt and pepper chromatin

A

Carcinoid tumor

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6
Q

Disease assocs of FAP

A

Garner Syndrome
-intestinal polyps and osteomas (mandible, skull & long bones)

Turcot Syndrome
-intestinal adenomas and CNS tumors

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7
Q

Accounts for 50% of Acute Hepatic failure

A

Acetaminophen

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8
Q

MC component causing Hepatic Encephalopathy

A

Ammonia

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9
Q

Responsible for muaty body odor in Hepatic Failure

A

Formation of Mercaptans as Thil complexes pass through the lungs

‘Fetor Hepaticus’

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10
Q

Pain
Ascites
Liver Enlargement

A

Budd Chiari Syndrome

obstruction of >/=2 major hepatic veins

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11
Q

Circular folds of the Jejunum

A

Valves of Kerkring

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12
Q

What do you call the anastomotic loops of arteries seen in Jejunum and Ileum

A

Arcades

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13
Q

Symptoms of diarrhea, hypokalemia and achlorhydia

A

VIPoma ( Werner-Morisson Syndrome )

- majority malignant

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14
Q

Whipple’s Triad

A

Insulinoma - most common islet cell tumor (>85%)

Fasting hypoglycemia
Hypoglycemic symptoms (catechol surg, sweating, tachycardia)
Relieved by glucose

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15
Q

Bloodless fold of Treves

A

Ileocecal fold

16
Q

CT signs of Acute Appendicitis

A

Diameter >7mm
Wall thickness >2mm
Bull’s eye appearance

17
Q

Sign with (+) rebound pain on applied pressure in Acute Appendicitis

A

Aaron’s sign

18
Q

Possible nerve injury on Appendectomy

A

Iliohypogastric Nerve

19
Q

Billlroth I vs II

A

Billroth I: antrectomy with gastroduodenal anastomosis

Billroth II: antrectomy with gastrojejunal anastomosis

20
Q

Levator ani muscles

A

‘PIP’
Puborectalis
Iliococcygeus
Pubococcygeus

Nerve Supply
Pelvic side: lower sacral nerve
Perineal side: inferior hemorrhoidal nerve

21
Q

Mucosal spiral folds of Cystic duct

A

Spiral valves of Heister

22
Q

3 transverse rectal folds of the Rectum

A

Valves of Houston

- formed by mucosa submucosa & inner circular layer of smooth muscle