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Radiology · GI imaging: feline oesophagus
Sample itemA young man with atopy and dysphagia to solids has a barium swallow that shows fine transverse folds across the mid and distal oesophagus resembling the cat's oesophagus. What is the diagnosis?
Original practice item, not a recalled exam question. Nothing here is recorded.
The answer and the reasoning
D. Eosinophilic oesophagitis
Eosinophilic oesophagitis causes transient contractions of the muscularis mucosae with fine transverse folds, called feline oesophagus, and fixed rings called trachealisation. Biopsy shows many eosinophils in the epithelium.
Option by option
A. Diffuse oesophageal spasm
Diffuse spasm shows a corkscrew pattern.
B. Carcinoma of the oesophagus
Carcinoma shows an irregular apple core stricture with shouldering.
C. Achalasia cardia
Achalasia shows bird beak tapering and a dilated body.
D. Eosinophilic oesophagitis (correct)
Correct. Atopy with transverse folds is the feline oesophagus of eosinophilic oesophagitis.
Source note: Original NextPrep sample item — pending expert review. This item is original practice material awaiting independent expert review, so confirm important facts in a standard textbook.
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