大腿骨骨頭に発生した Benign Chondroblastoma の1例

抄録

A 28-year-old male entered the hospital because of pain in the right hip of ten months' duration. The hip range of motion was full. The laboratory data were completely normal. Roentogenogram of the right hip showed a well defined lytic lesion involving the medial posterior aspect of the femoral head, which extended just below the articular cartilage of the head.
On the 8th hospital day, a needle-biopsy was performed and we experienced “spurt of blood” from the needle.
Two weeks later, the head of the femur was excised and a Moore prosthesis was inserted. At one year later. the patient had no evidence of recurrence and excellent hip function.
Histology was the presence of focal areas of carcification, polyhedral cells, chondroid tissue and hemorrhagic cysts.
It seemed that this case was chondroblastoma with aneurysmal bone cyst.