Osteoid osteoma of the pisiform: A case report

Abstract

BackgroundOsteoid osteoma is an uncommon benign bone-forming tumor of the musculoskeletal system but it is the most common primary bone tumor of the carpal region. However, only seven cases of its pisiform involvement have been described.CaseWe present a 19 year-old male patient with osteoid osteoma of the pisiform which initially could not be detected in any diagnostic study for long standing wrist pain. The patient was treated with excision and curettage. In 1 year of follow-up, the patient was asymptomatic without recurrence.ConclusionIn cases with long standing ulnar wrist pain, one should consider osteoid osteoma of the pisiform in differential diagnosis. If an OO is suspected, thin slice CT scan in initial evaluation would be valuable in preventing the patient from misdiagnosis or delay in diagnosis.

Osteoid osteoma of the wrist misdiagnosed as de Quervain’s tenosynovitis due to normal X-ray at the first visit: A case report

“…Osteoid osteomas tend to occur mainly in the long bones and in relatively young adults. There are only a few reports of osteoid osteomas found on or around the wrist joint, [ [5] , [6] , [7] , [8] ] and reports of radial osteoid osteomas are especially rare [ 9 , 10 ]. When an osteoma occurs in a relatively uncommon location, it is often difficult to diagnose.…”

Isolated Osseous Excision in the Adult Carpus: A Narrative Review

“…4,66 Osteoid osteomas can also present with prolonged nontraumatic wrist pain and when appropriately diagnosed and treated with pisiformectomy, patients conserve proper wrist function. [67][68][69] Antuña et al described a rare case of ulnar nerve compression through Guyon's canal due to a hypertrophic pisiform treated with pisiformectomy that completely relieved symptoms with no functional deficit. 70 Pisiformectomy has a role in the management of acute injuries normally treated with ORIF in other carpal bones.…”