Endoscopic third ventriculostomy in prepontine-suprasellar tuberculoma with tuberculous meningitis hydrocephalus: a case report.

We present a case of prepontine-suprasellar tuberculoma involving the premamillary region of the third ventricular floor, a site suitable to perform an endoscopic third ventriculostomy (ETV) stoma, managed endoscopically, and discuss our findings. A 5-year-old male child was admitted in an unconscious state with a history of gradually progressive symptoms of raised intracranial pressure and low-grade fever for the last 3 months. Head computed tomography showed thick enhancing basal exudates, a prepontine-suprasellar ring-enhancing lesion with consequent obstructive hydrocephalus. The child was subjected to urgent endoscopy which revealed multiple ependymal tubercles along with prepontine-suprasellar tuberculoma involving the premamillary region of the third ventricular floor. The tuberculoma was decompressed using a 5-french catheter, and ETV was performed. Postoperatively, the child improved clinicoradiologically on antitubercular chemotherapy and needed no further cerebrospinal fluid diversion surgery; he is under regular follow-up. We conclude that ETV may be attempted even in the presence of thick basal exudates and/or prepontine-suprasellar tuberculoma.