HSV
Tzanck test
esophageal fistula
Bronchossopy shows ovoid defect on post trachea at about T1
Hirschprung’s dis
absence of ganglion cells in affected segment
barretts esopahgus
Endoscopic biopsy evidence of metaplastic and columnar mucosa above the GE jct
H pylori chronic gastritis
- Warthrin-Starry stain
- Immunohistochemistry stain for H. Hylori
- CLO test
- biopsy: gold std: body vs antral glands
intussusception
contrast enemas: donut sign
celiac dis
- Need both serology and histology.
- IgA antibodies to tissue transglutaminase (tTG) (best) or anti-endomysial (EMA).
- Gold standard: biopsy
campylobacter enterocolitis, shigella, salmonella, yersinia,
stool culture
giardia lamblia
cysts in stool sample
irritable bowel synd
abd pain 3d/mo for over 3mos
acute appendicitis
Nf infiltration of the muscularis propria
NFALD
liver biopsy: assess for scarring
hemochromatosis
- Look for Fe in the tissues with Prussian blue.
- Screen for high levels of serum iron and ferritin.
- Screen family members
wilsond dis
- Decreased serum ceruloplasmin.
- Increased hepatic copper content (most sensitive and accurate)+250ug/dry wt
- Increased urinary copper excretion (most specific screening test)
primary biliary cirrhosis
florid duct line on biopsy
primary sclerosing cholangitis
beading on radiographs
hepatocellular carcinoma (hepatoma)
US, CT, MRI
