[Diabetic muscle infarction as a rare cause of acute onset leg pain].

Diabetic muscle infarction (DMI) is a rare microvascular complication with spontaneous necrosis of skeletal musculature, most often localised to the thigh. DMI presents as an acute onset of pain in a muscle or muscle group. DMI is probably underdiagnosed because of its rareness and many differential diagnoses, why patients often undergo unnecessary and invasive diagnostic testing.