Hajira Khurshid, Sehar Khaliq, Lubna Zafar.
Essential thrombocythaemia presenting as recurrent headaches in a young patient: a case report.
Pak J Pathol Jan ;28(3):145-7.

Essential thrombocythemia is a rare hematological disorder which mostly presents in elderly. Its clinical picture is dominated by predisposition to vascular occlusive events and hemorrhage. Headache, visual disturbances and light headedness are some of the neurological manifestations of essential thrombocythemia. In middle aged or elderly patients these findings are suggestive of essential thrombocythemia, however in young patients; one usually is not suspecting essential thrombocythemia to be the cause of headache. Here, we report a case of young male who presented as outdoor patient with severe headache since 3 months. On blood complete picture his platelet count was raised. All the causes of reactive thrombocytosis were ruled out. After bone marrow examination, diagnosis of essential thrombocythemia was made. It is unusual for essential thrombocythemia as a cause of headache in young patients and has not been documented in the literature.

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