Osteoid osteoma of the carpal bones.

Three cases of osteoid osteoma of the carpal bones are described, with a review of the literature. The scaphoid is the carpal bone involved most frequently. Typically the lesions are painful and respond to aspirin. Roentgenologic finding of the central area of lucency surrounded by sclerotic bone often is diagnostic. Block excision with bone grafting is an acceptable method of treatment.