Brain mass in a young athlete.

An 18-year-old athlete presented to the emergency department after he was hit in the face during football practice. He had pain over his nose, but no blurred vision or loss of consciousness. He had no relevant medical history. Physical examination revealed bleeding from his nostrils and pain over the nasal bridge. His neurologic examination was unremarkable. Radiography and computed tomography of the facial bones revealed a nasal fracture and an intracranial abnormality. Magnetic resonance imaging (MRI) without contrast media was performed for better evaluation of this abnormality (Figures 1 and 2).