Document Type

Case Report


We report the Magnetic Resonance Imaging of intracranial extramedullaryhematopoiesis in 21 years old β-thalassemic patient who presented to the Neurology Department of Civil Hospital Karachi with seizures. The MR exam revealed multiple intracranialextra-axial masses;isointense on T1W sequence and hypointenseon T1W, T2W, FLAIR, DWI sequence and ADC (b value= 1000 sec/mm2) with avid post contrast enhancement. Plain CT of the Head documented the presence of multiple hyperdenseextra-axial masses with mean value of 45 HU. Extramedullary hematopoiesis is the formation and development of blood cells in tissues outside of the medulla of the bone. The most common sites of involvement are the liver, spleen, and lymph nodes.Intracranial extra medullary hematopoiesis is a relatively rare manifestation of Thalassemia. There is paucity of literature for MR findings regarding intracranial EMH. It is essential to distinguish it from other central nervous system tumors, because treatment and prognosis are entirely different.

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