In sickle cell crisis bone pain is due to:-: (A) Bone infarction, (B) Osteroporosis, (C) Osteomalacia, (D) Periosteal reaction
Answer is A. - Abnormal shape of RBC - Occlusion of small vessels of bone - bone infarction - resulting in pain If bones of hand & feet are involved - Hand foot syndrome Long bones - Avascular necrosis of femur veebral column - 'H' shaped veebra/ cod fish veebra/ fish mouth veebra -X ray skull - crew cut appearance (Hair on end appearance)