An intracranial colloid cyst is a rare, slow-growing cyst typically found near the foramen of Monro. The mechanisms of its origin are still debated. It has a reported occurrence of 0.2%–2% of all intracranial tumours. A nasopharyngeal/Tornwaldt's cyst is also a rare developmental benign cyst commonly present in the midline of the posterior nasopharynx with a reported incidence of 1.4%–3.3% on autopsy specimens and 0.2%–5% on magnetic resonance imaging. To the best of our knowledge, while a few reports are available where these have been reported separately in different patients, the contemporaneous coexistence of these 2 cysts in the same patient has not been reported before.
