5-year old male with an interhemispheric frontal mass.

摘要

CLINICAL HISTORY A 1-year old male (with no significant past medical history) presented to the Department of Plastic Surgery for evaluation and eventual resection of a subcutaneous frontal mass. Imaging of the head revealed a second intracranial mass and he was referred to the Department of Neurosurgery. Subsequently, Magnetic Resonance Imaging (MRI) detected two T-1 -hyperintense masses. One was the extra-cranial frontal mass noted clinically and the other was an intra-axial, interhemispheric frontal mass. Additionally, partial agenesis of posterior corpus callosum was found. (Figure 1) At that time, only the subcutaneous mass was resected and physical examination was normal. Four years later a follow-up MRI revealed that the intracranial lesion had doubled in size (Figure 2). It was hyperintense on both T1 and T2 (Figures 2 and 3). Craniotomy was performed and a soft yellow mass was partially resected. Focal attachment to the cingulate gyri was appreciated.