In radiology, the<unk> , or<unk> ing, is a radiologic sign found on a radiograph that suggests the diagnosis of either epiglottitis or intestinal ischemia. In a lateral C-spine radiograph, the sign is caused by a thickened free edge of the epiglottis, which causes it to appear more radiopaque than normal, resembling the distal thumb. In an abdominal radiography,<unk> ing has an appearance of thumbs protruding into the intestinal lumen, and is caused by thickened edematous mucosal folds. Abdominal<unk> ing is a non-specific finding, though one potential cause is intestinal ischemia.
Thumbprint sign
Limbus sign
White hand sign
Puddle sign
Steeple sign
Lincoln sign
John Thomas sign
Terry Thomas sign