RESUMEN
We report a case of primary sinonasal tuberculosis in a 23-year old man. He had a half-year history of headache and eye pain on the left side, and found the neoplasm of nasopharynx 15 days ago. Previously denied history of tuberculosis and contact history. After be admitted to hospital, twice biopsy from neoplasm of na- sopharynx were both of chronic inflammation. Coronal CT scan of the lesion when admission found the left parasellar region and the left sphenoid sinus soft tissue density increased, about 20 mm X 32 mm X 34 mm, left inferior wall between sella bone defects, and bone sclerosis, plain CT value was about 34 HU, the lesion protruded downward left the nasopharynx. Eight days after he was admissioned in hospital of sphenoid sinus biopsy showed granulomatous inflammation and tuberculosis diagnosis was considered. Review of the lesion is partial absorbed after 11 months of anti-tuberculosis treatment and now is still in follow-up.