DARK CEREBELLAR SIGN: A CASE REPORT

Abstract: We are here to discuss a case of “ darkcerebellar sign”, a rare signin neuroradiology. Darkcerebellar signis characterized by a hypoxic ischemic insult resulting in an edematous cerebellumthat appears hypodense on CT scan. Our patient is a 13 year old male, known case of Acute lymphocytic leukemia(ALL) for 7 years, treated for relapse, recurrent febrile illnesses and discharged from hospital two days before presentingin ER in a collapsed state with metabolic derangements and darkcerebellar signon CT scan. Etiology of this signis not well established as isolated infarction of cerebellumis rare. A single case report has shown an association of TCA ( tricyclic antidepressants) intoxication with darkcerebellar sign. Our case shows that metabolic derangements, hematological diseasesand infections should be included in the list of differential diagnosis for isolated cerebellar infarction in children. Key words : Dark cerebellum, Acute lymphoblastic leukemia.