title: Tuberculosis of the nasopharynx following radiotherapy.
abstract: We report the case history of a patient who was treated with radiotherapy for nasopharyngeal carcinoma. During follow-up, she showed signs, symptoms and radiological evidence of disease recurrence and progression. However, repeated biopsies of the posterior nasal space (PNS) failed to demonstrate malignancy. A diagnosis of nasopharyngeal tuberculosis was finally made when tissue from a PNS biopsy stained positive for acid-fast bacillus. The patient responded to antituberculous chemotherapy.
authors.affiliation: Singapore General Hospital, Singapore.
authors.forename: B L
authors.initials: BL
authors.lastname: Chua
authors.forename: H
authors.initials: H
authors.lastname: Tan
authors.forename: E T
authors.initials: ET
authors.lastname: Yang
mesh_terms: D000328:Adult; D002277:Carcinoma / Q000175:diagnosis / Q000532:radiotherapy*; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D008279:Magnetic Resonance Imaging; D009302:Nasopharyngeal Diseases / Q000175:diagnosis*; D009303:Nasopharyngeal Neoplasms / Q000175:diagnosis / Q000532:radiotherapy*; D009364:Neoplasm Recurrence, Local / Q000175:diagnosis; D014057:Tomography, X-Ray Computed; D014376:Tuberculosis / Q000175:diagnosis*