During sagittal sectioning of an adult male cadaver head for undergraduate teaching a swelling was noticed in the nasopharyngeal roof. The lesion was a honey-combed cyst covered by nasopharyngeal mucosa.Light microscopy showed a multiloculated fibrous walled lesion lined by pseudostratified ciliated columnar epithelium with mononuclear cell invasion.The appearance is consistent with Tornwaldt's cyst. It is formed as a result of retraction of the notochord from where it contacts the endoderm during early development of the pharynx.