A rare presentation of nasopharyngeal mass: a case report

A Thornwaldt's cyst develops in the nasopharynx, which is the region where the throat and nasal passageways converge, extending from the back of the nasal tube to above the soft palate. A painful throat, obstruction of the eustachian tube, and pus with an unpleasant taste and odour might result from an infection of the cyst. Here in our study, we report a case of a 27-year-old male presented with symptoms of nasal obstruction and voice change for the past 1 year. On zero-degree endoscopic examination, a nasopharyngeal mass was seen arising from the roof of the nasopharynx without bony erosion of skull base. Further based on his radiological investigations, heterogeneous hyperintense lesion in T1/T2 weighted images of size 5×5 mm noted in nasopharynx most likely to be the Thornwaldt’s cyst. Thus, the surgical removal of the nasopharyngeal mass has been performed through a transoral and trans nasal endoscopic technique with no remnants at the surgical site. The histopathological findings revealed respiratory-type epithelium with underlying lymphoid tissue confirming Thornwald’s cyst as diagnosis. The patient was discharged with no complications and have been periodically advised for a follow-up. The differential diagnosis should include a meningocele or meningo-encephalocele. Various therapeutic approaches, including endoscopic, transoral, or trans palatal surgical interventions, can be used for treatment of symptomatic cysts.