Crew cut appearance on X ray skull is seen in:
Ans. A. ThalassemiaCrew cut appearance in thalassemia occurs due to expansion of the marrow on account of extra-medullary hemapoiesis.The widened diploic spaces on X-ray skull lateral view appear as Crew cut or hair on end appearance.
Thalassemia
Megaloblastic anemia
Autoimmune hemolytic anemia
Ultrasonography
Skeletal System