Bilateral camptodactyly in twin sisters

Camptodactyly is defined as a permanent flexion contracture at the proximal interphalangeal (PIF) joints with mostly the fifth finger involvement. The incidence of camptodactyly is approximately 1%–2% in the general population. Camptodactyly is usually overlooked unless it causes discomfort either cosmetically or functionally. Camptodactyly is generally isolated; however,it may also accompany other anomalies or a number of very rare syndromes. Because the condition can also be mistaken for some rheumatologic diseases,such as rheumatoid arthritis,early diagnosis with a detailed musculoskeletal examination is vital for both prevention of deformity and unnecessary anxiety.