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Zorluk: OrtaGastroenterology and Hepatology

A medical student is reviewing small bowel biopsy pathology reports for several patients presenting with chronic diarrhea, weight loss, and signs of malabsorption. Match each clinical diagnosis with its hallmark histologic finding on small intestinal biopsy.

  • Celiac diseaseVillous blunting, crypt hyperplasia, and increased intraepithelial lymphocytes
  • Whipple diseaseFoamy macrophages containing PAS-positive, diastase-resistant granules in the lamina propria
  • AbetalipoproteinemiaNormal villous architecture with lipid-laden enterocytes concentrated at the villus tips
  • Eosinophilic gastroenteritisDense infiltration of the mucosa and submucosa by eosinophils

Cevap

Celiac disease matches with villous blunting; Whipple disease matches with PAS-positive macrophages; Abetalipoproteinemia matches with lipid-laden enterocytes; Eosinophilic gastroenteritis matches with dense eosinophilic infiltration.
Accurate diagnosis of chronic diarrhea and malabsorption relies heavily on endoscopic biopsy. Each of these four conditions presents with distinct and defining histopathological features that guide targeted therapy.

Adım Adım Çözüm

1
Analyze the histologic finding for Celiac disease.
Identified as villous blunting, crypt hyperplasia, and increased intraepithelial lymphocytes.
Gluten induces an inflammatory response leading to these classic mucosal changes.
2
Analyze the histologic finding for Whipple disease.
Identified as foamy macrophages containing PAS-positive, diastase-resistant granules.
These granules represent partially digested T. whipplei bacteria within macrophages.
3
Analyze the histologic finding for Abetalipoproteinemia.
Identified as normal villous architecture with lipid-laden enterocytes at the villus tips.
Defective chylomicron assembly traps absorbed lipids within the mucosal cells.
4
Analyze the histologic finding for Eosinophilic gastroenteritis.
Identified as dense infiltration of the mucosa and submucosa by eosinophils.
The disease is defined by eosinophilic tissue infiltration, often linked to allergic responses.

Anahtar Kavram

Histopathologic diagnosis of malabsorptive syndromes
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