title: Isolated tubercular hypoglossal nerve paralysis.
abstract: Hypoglossal nerve palsy is not an uncommon neurological finding but primary nasopharyngeal tuberculosis (TB) presenting as hypoglossal nerve palsy is very rare. A 31-year-old woman presented with headache and progressive tongue deviation towards the right side. Diagnostic nasal endoscopy revealed soft tissue mass lesion on the posterior wall of nasopharynx while MRI revealed isointense tumour in nasopharynx with normal hypoglossal nerve and brain. Histopathological examination found TB. We discuss the clinical challenges and possible pathogenesis of this rare clinical entity.
authors.affiliation: 1 Department of Otolaryngology-Head and Neck Surgery (ENT), Indira Gandhi Medical College, Shimla, HP, India.
authors.forename: J S
authors.initials: JS
authors.lastname: Thakur
authors.affiliation: 2 Department of Otolaryngology-Head and Neck Surgery (ENT), Indira Gandhi Medical College, Shimla, HP, India.
authors.forename: Naina
authors.initials: N
authors.lastname: Verma
authors.affiliation: 3 Department of Pathology, Indira Gandhi Medical College, Shimla, HP, India.
authors.forename: Shobha
authors.initials: S
authors.lastname: Mohindroo
authors.affiliation: 2 Department of Otolaryngology-Head and Neck Surgery (ENT), Indira Gandhi Medical College, Shimla, HP, India.
authors.forename: Ramesh K
authors.initials: RK
authors.lastname: Azad
authors.affiliation: 2 Department of Otolaryngology-Head and Neck Surgery (ENT), Indira Gandhi Medical College, Shimla, HP, India.
authors.forename: N K
authors.initials: NK
authors.lastname: Mohindroo
mesh_terms: D000328:Adult; D000995:Antitubercular Agents / Q000627:therapeutic use; D005260:Female; D006261:Headache / Q000175:diagnosis; D006801:Humans; D020437:Hypoglossal Nerve Diseases / Q000175:diagnosis* / Q000188:drug therapy; D008279:Magnetic Resonance Imaging; D009302:Nasopharyngeal Diseases / Q000175:diagnosis* / Q000188:drug therapy; D014057:Tomography, X-Ray Computed; D014376:Tuberculosis / Q000175:diagnosis* / Q000188:drug therapy
chemical_list: D000995:Antitubercular Agents
keywords: Nasopharynx; hypoglossal nerve; tuberculosis