The sprained finger that isn't.
Six athletic injuries commonly misdiagnosed as a sprained finger are three types of closed tendon injuries, two types of intra-articular fractures involving the middle joint and a volar plate avulsion of the middle joint. The proper diagnosis can usually be made with a good history, a thorough examination and anteroposterior, lateral and oblique x-rays of the finger. Reconstructive procedures can be performed for missed injuries, but the results are inferior to those obtained with early treatment.
D003937:Diagnosis, Differential; D005383:Finger Injuries / Q000175:diagnosis* / Q000628:therapy; D005384:Finger Joint; D050723:Fractures, Bone / Q000175:diagnosis* / Q000628:therapy; D006801:Humans; D012421:Rupture; D013180:Sprains and Strains / Q000175:diagnosis* / Q000628:therapy; D013708:Tendon Injuries / Q000175:diagnosis* / Q000628:therapy