Extramedullary hematopoiesis is an extension of marrow beyond its bony casement. It is associated with a number of diseses when the normal function of marrow is disturbed. A large accumulation of extramedullary hematopoiesis may occur at the paravertebral area, mediastinum, spleen and liver. Intrarenal extramedullary hematopoiesis is rare.Only a few cases have been reported of myelofi...