title: An 11-year-old boy with swelling and progressive deformity of his finger.
abstract: The following case is presented to illustrate the roentgenographic and clinical findings of a condition of interest to the orthopaedic surgeon. Initial history, physical findings, and roentgenographic examinations are found on the first two pages. The final clinical and roentgenographic differential diagnoses are presented on the following pages.
authors.affiliation: Beijing Ji Shui Tan Hospital, Beijing Institute of Traumatology and Orthopaedics, People's Republic of China.
authors.forename: Y
authors.initials: Y
authors.lastname: Yin
authors.forename: M B
authors.initials: MB
authors.lastname: Rotman
authors.forename: L A
authors.initials: LA
authors.lastname: Gilula
mesh_terms: D017668:Age of Onset; D002648:Child; D003937:Diagnosis, Differential; D005384:Finger Joint / Q000002:abnormalities* / Q000000981:diagnostic imaging / Q000503:physiopathology; D006226:Hand Deformities / Q000000981:diagnostic imaging* / Q000503:physiopathology / Q000628:therapy; D006801:Humans; D007249:Inflammation; D008297:Male; D011859:Radiography