MCQ – 83798

Spot radiograph from a double contrast esophagram. Image represents:

A.	Esophageal atresia
B.	Esophageal stenosis
C.	Feline esophagus
D.	Tracheoesophageal fistula

Show Answer

Correct Answer � C Explanation

Answer- C. Feline esophagus

• In the given image, there are numerous 1-2 mm radiolucent folds across the esophagus. The folds are angled concerning to the center of the esophagus in a “herringbone” pattern.
• The folds occur transiently.
• The feline esophagus also is known as an oesophageal shiver, refers to the transient transverse bands seen in the mid and lower esophagus on a double-contrast barium swallow.
• These fine mucosal folds are a transient finding produced by contraction of the muscularis mucosa. A similar appearance may be seen in cats. It is usually a normal variant but may be associated with GERD.
• These fine folds are probably of no significance and relate to the technique as they are most and relate to the technique as they are most often seen when the esophagus in only partially distended.

Radiographic features

• The folds are 1-2 mm thick and run horizontally around the entire circumference of the oesophageal lumen. The findings are transient, seen following reflux, and not during swallowing. The appearance is confined to the distal two-thirds of the thoracic esophagus.