Two cases of calcific tendinitis of gluteus maximus muscle are presented. T
he CT findings, including amorphous calcification without soft tissue;mass
and possible cortical erosion at the femoral enthesis of the gluteus maximu
s muscle are highly suggestive of calcific tendinitis at this unusual but c
lassical defect are frequent at the femoral insertion of the gluteus maximu
s muscle in asymptomatic subjects and must be differentiated from a real co
rtical erosion sometimes associated with these calcific tendinitis.