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Slides in the "Small intestine" Category

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Amyloidosis, duodenal

08.24.2009 | Author: Russell Ryan, M.D. | Posted in Small intestine | No Comments »

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79 year old with gastric tumor and long history of gastritis and duodenitis.

Celiac sprue

10.15.2009 | Author: Russell Ryan, M.D. | Posted in Small intestine | No Comments »

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Female in her 30’s with iron deficiency anemia. Duodenal biopsy.

Cholchicine toxicity

05.24.2009 | Author: Ricard Masia, MD, PhD | Posted in Small intestine | No Comments »

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MICROSCOPIC FEATURES

• Numerous metaphase mitoses in crypt epithelium, especially “ring” mitoses
• There may also be epithelial pseudostratification, loss of goblet cell polarity, villus blunting, and increased apoptotic figures

DIFFERENTIAL DIAGNOSIS

Collagenous sprue

08.24.2009 | Author: Russell Ryan, M.D. | Posted in Small intestine | No Comments »

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65 year old with clinical picture of celiac disease, unresponsive to gluten-free diet.

Cystic fibrosis (colon)

05.01.2009 | Author: Russell Ryan, M.D. | Posted in Small intestine | No Comments »

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19 yo with small intestinal obstruction. Ileal mass was surgically removed

Giardiasis

08.08.2009 | Author: Ricard Masia, MD, PhD | Posted in Small intestine | No Comments »

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MICROSCOPIC FEATURES

• Giardia lamblia trophozoites (pear-shaped organisms, sometimes with two nuclei) seen on the luminal surface, with no tissue invasion
• Usually normal-appearing intestinal mucosa, but can sometimes see villous blunting, and a mixed inflammatory infiltrate in the lamina propria (neutrophils, lymphocytes, and plasma cells)