Short Fifth Metacarpals-Insulin Resistance Syndrome

A rare genetic disease characterized by the association of unilateral or bilateral short fifth metacarpals (defined as a gap of 2 mm or more between the distal end of the fifth metacarpal bone and a tangential line connecting the distal ends of the third and fourth metacarpals), insulin resistance, and spherocytosis. Familial short stature has not been reported as part of the syndrome.