Sausage Finger

Dermatology A sign consisting of fusiform soft-tissue swelling of usually a single digit, fancifully likened to a cocktail sausage, and classically associated with the single-ray pattern of involvement in psoriatic arthritis. It may rarely be the first sign of psoriasis
Rheumatology A generic term used by rheumatologists to describe diffuse swelling of the digit, as may occur in proliferative tenosynovitis caused by an atypical mycobacterium, Mycobacterium terrae