Lateral Intraventricular Epidermoid Cyst: A rare case report

Abstract: Epidermoid cysts originate from ectopic embryonic epithelial cells and are a very common type of benign intracranial tumor. However, the incidence of intraventricular epidermoid cysts is low, and lateral intraventricular epidermoid cysts are even rarer. Here, we present a case of lateral intraventricular epidermoid cyst and review the relevant literature. A 33?year?old male who was presented with complaints of aphasia, vomiting, inability to walk and previous history VP shunt which was blocked on examination. A computed tomography of the brain showed a low?density mass in the lateral ventricle and enlargement of the left ventricle. Cranial magnetic resonance imaging further confirmed that the mass was an epidermoid cyst. The patient underwent microscopic surgical resection combined with endoscopy via the Keen’s point as a tract to reach the ventricle. The mass was satisfactorily removed, and the patient recovered well. Lateral intraventricular epidermoid cysts often present with clinical symptoms due to the invasion of surrounding brain tissue or blockage of the cerebrospinal fluid system. Diagnosis relies on examination by magnetic resonance imaging, and treatment relies on surgical resection. The prognoses of patients are mostly excellent and depend on whether the tumor is resected cleanly or not. Key Words: Epidermoid cyst, lateral intraventricular, prognosis, surgery