title: Rare case of extraskeletal Ewings sarcoma of the sinonasal tract.
abstract: Ewings sarcoma (ES) and primitive neuroectodermal tumor are closely related family of small round cell tumors seen in childhood and adolescence. The incidence of these tumors occurring in the head and neck region is just 2-7%. Mandible and maxilla are the most common sites, whereas involvement of the sinonasal tract is very rare. We report a case of extraskeletal ES of the sinonasal tract in a 29-year-old female who presented with nasal obstruction and epistaxis. The patient was treated with 14 cycles of chemotherapy, combined with surgery and radiotherapy with complete recovery. We present this case due to its rarity, to analyze the clinical, histopathological and immunohistochemical findings, so as to differentiate from other small round cell tumors of the sinonasal tract for appropriate treatment.
authors.affiliation: Department of Pathology, K S Hegde Medical Academy of Nitte University, Deralakatte, Mangalore, India. drsunikumary@rediffmail.com
authors.forename: Sunil Kumar
authors.initials: SK
authors.lastname: Yeshvanth
authors.forename: Kurian
authors.initials: K
authors.lastname: Ninan
authors.forename: Sathish Kumar
authors.initials: SK
authors.lastname: Bhandary
authors.forename: Kishan Prasad H
authors.initials: KP
authors.lastname: Lakshinarayana
authors.forename: Jayaprakash K
authors.initials: JK
authors.lastname: Shetty
authors.forename: Jagdish H
authors.initials: JH
authors.lastname: Makannavar
mesh_terms: D000328:Adult; D005260:Female; D006801:Humans; D009669:Nose Neoplasms / Q000175:diagnosis* / Q000628:therapy; D010256:Paranasal Sinuses; D012512:Sarcoma, Ewing / Q000175:diagnosis* / Q000628:therapy; D016896:Treatment Outcome