Аннотация
Relevance: Ewing’s sarcoma is an aggressive tumor rarely found in the head and neck region and extremely rare in the nasal cavity or paranasal sinuses (2-3% of all Ewing’s sarcomas). Purpose: To presents a clinical diagnostic case of nasal cavity Ewing’s sarcoma finally verified only by IHC test. Results: The presented clinical case describes Ewing’s sarcoma of the nasal cavity in a 14-year-old girl and presents the clinical picture, the results of MRI and CT examination of the sinuses, histopathological and IHC tests. Adequate diagnostical tools made it possible to establish a diagnosis. Timely determined treatment tactics, taking into account the tumor localization and possible postoperative complications, led to tumor remission. At present, the patient is under dynamic observation. Conclusion: The presented clinical case confirms that a primary nasal cavity Ewing’s sarcoma diagnostic largely depends on histopathological examination since visual diagnostic techniques do not provide reliable information on the tumor type.