THE BONE-SCAN IN TARSAL COALITION - A CASE-REPORT

Tarsal coalition is abnormal fusion of two or more tarsal bones. The u nion may be fibrous, cartilaginous, or osseous and can be congenital o r acquired in response to infection, articular disorders, trauma, or s urgery. We report a case of fibrous talocalcaneal coalition in a 15-ye ar-old boy in whom bone scintigraphy employing pinhole lateral views c onfirmed the clinical diagnosis when plain radiographs showed minimal changes and computed tomography was equivocal. The diagnosis of sympto matic tarsal coalition is important in that it is a common remediable cause of peroneal spastic flat foot, a frequently encountered conditio n. Scintigraphy provides important information about the presence and localization of this condition.