In sickle cell crisis bone pain is due to:: (A) Bone infarction, (B) Osteroporosis, (C) Osteomalacia, (D) Periosteal reaction
Answer is A. In sickle cell crisis bone pain is due to bone infarction. RBC are sticky, so branching blood vessels gets occluded leading to infarction. "Fish mouth veebra" seen in sickle cell anemia.