Subependymomas are rare benign tumors located in the ventricular system. Intraparenchymal subependymoma is extremely rare; only 6 cases have been reported, and all were located in the supratentorial region. We describe a case of infratentorial, intraparenchymal subependymoma in a 28-year-old man with intermittent headache. Imaging revealed a well-demarcated cystic and solid cerebellar mass near the fourth ventricle. The mass had a microcystic component and calcification without contrast enhancement. Complete surgical excision was performed, and histopathology confirmed a subependymoma.
Adult ; Calcinosis/diagnosis ; Cerebellar Neoplasms/*diagnosis/surgery ; Fourth Ventricle ; Glioma, Subependymal/*diagnosis/surgery ; Humans ; Magnetic Resonance Imaging ; Male ; Rare Diseases/*diagnosis/surgery ; Tomography, X-Ray Computed