Cerebral sinovenous thrombosis is rare in children [1]. Mostcommon signs and symptoms are seizure, lethargy, and headache[1,2,3]. We herein report a case diagnosed as cerebral sinovenousthrombosis mimicking an intracranial mass and presenting withincreased intracranial pressure symptoms in an adolescent girl.A 16-year-old girl was admitted to our emergency service withcomplaints of headache, vomiting, and confusion. Her pastmedical history was unremarkable. Physical examination revealedfacial paralysis and motor weakness on the left side. Magneticresonance (MR) imaging disclosed a mass (65x42x55 mm) in theright temporal lobe shifting the midline structure from rightto left (Figure 1). Because of herniation findings, surgery wasperformed immediately. Histopathologic investigation showed thrombosis associated with iron deficiency, two cases with normal platelet count have also been described [7]. As not all cases of iron-related thrombotic events occur in patients with concomitant high platelet counts, other pathogenic mechanisms have been proposed. One of these explanations is that iron deficiency may contribute to a hypercoagulable state by affecting blood flow patterns within the vessels because of reduced deformability and increased viscosity of microcytic red blood cells. Furthermore, anemic hypoxia secondary to iron deficiency has been suggested to precipitate situations of increased metabolic stress, in particularly in vulnerable areas of the brain supplied by end arteries [8]. In our patient, iron deficiency may also have contributed to the development of thrombosis.
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