thumbprinting

Thumbprinting is a radiographic sign of large bowel wall thickening, usually caused by edema, related to an infective or inflammatory process (colitis). The normal haustra become thickened at regular intervals appearing like thumbprints projecting into the aerated lumen.

Pathology

Etiology

Thumbprinting may be seen in:

Radiographic features

Plain radiograph/CT

Thumb-shaped, nodular, indentations at regular intervals in the bowel wall.

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