Swollen digits due to pachydermodactyly resembling inflammatory arthritis

Abstract

Pachydermodactyly is a rare digital fibromatosis, characterized by painless, fusiform swelling in prox-imal interphalangeal joints. Since it may be misdiagnosed as inflammatory arthritis, it is important tocall physicians’ attention to this rarely seen condition to avoid unnecessary immunosuppressive treat-ment. Hereby, we present a case of a pachydermodactyly that had been previously followed-up andtreated as an inflammatory arthritis for 4 years. We describe the clinical, radiological, and dermoscopicfeatures of the case.