title: Smooth muscle tumour of uncertain malignant potential (SMTUMP) in the nasal cavity: an incidental finding.
abstract: Sino-nasal smooth muscle tumours of uncertain malignant potential (SMTUMP) are very rare neoplasms of mesenchymal origin with features in between a benign leiomyoma and a leiomyosarcoma. We report a rare case of SMTUMP in a 44-year-old woman, who presented with vague symptoms of pharyngitis. Nasal endoscopy revealed a smooth mass in left nasal cavity. Contrast-enhanced CT and MRI scans showed features likely to be inverted papilloma or olfactory neuroblastoma or meningioma. Excision was planned and intraoperatively, frozen section revealed a probable spindle cell lesion. Final histopathological report following immunohistochemistry (IHC) & immunofluoresence (IF) confirmed it to be a SMTUMP. This patient underwent complete resection via endoscopic KTP laser assisted, anterior skull base surgery with no recurrence on follow-up.
authors.affiliation: Department of Otolaryngology-Head and Neck Surgery, Kasturba Medical College, Manipal, Karnataka, India.
authors.forename: Dipak Ranjan
authors.initials: DR
authors.lastname: Nayak
authors.affiliation: Department of ENT, Head and Neck Surgery, Kasturba Medical College, Manipal, Karnataka, India.
authors.forename: Asheesh Dora
authors.initials: AD
authors.lastname: Ghanpur
authors.affiliation: Department of Otorhinolaryngology-Head and Neck Surgery, Kasturba Medical College, Manipal, Karnataka, India.
authors.forename: Apoorva N
authors.initials: AN
authors.lastname: Reddy
authors.affiliation: Department of Pathology, Kasturba Medical College, Manipal, Karnataka, India.
authors.forename: Swati
authors.initials: S
authors.lastname: Sharma
mesh_terms: D000328:Adult; D005260:Female; D006801:Humans; D033162:Incidental Findings; D009296:Nasal Cavity; D009669:Nose Neoplasms / Q000150:complications / Q000175:diagnosis*; D010612:Pharyngitis / Q000209:etiology; D018235:Smooth Muscle Tumor / Q000150:complications / Q000175:diagnosis*