Three femoral heads with non-traumatic aseptic necrosis were excised surgically, and then investigated histologically.
Case 1: 57 year-old female with aseptic necrosis of femoral head associated with osteoarthritic features.
Case 2: 47 year-old female, after steroid therapy for sarcoidosis
Case 3: 34 year-old male, following steroid therapy for systemic lupus erythematosus.
There were no specific histological findings in three cases, which are related to the original disease.