RT Journal Article SR Electronic T1 Intracranial myeloid metaplasia in idiopathic myelofibrosis JF Neurosciences Journal JO Neurosciences (Riyadh) FD Prince Sultan Military Medical City SP 218 OP 220 VO 9 IS 3 A1 Ayyildiz, Orhan A1 Isikdogan, Abdurrahman A1 Soker, Murat A1 Celik, Murat YR 2004 UL http://nsj.org.sa/content/9/3/218.abstract AB Extramedullary hematopoiesis is a common finding in idiopathic myelofibrosis and is generally found in the liver, spleen and lymph nodes, but meningeal extramedullary hematopoiesis is very rare. Some diseases may be causes of intracranial masses and diagnosis is difficult. We present a case diagnosed as intracranial and meningeal extramedullary hematopoiesis with idiopathic myelofibrosis inducing serious headache.