Ewing’s Sarcoma of the Sinonasal Tract: A Report of Two Challenging Cases


Ewing’s sarcoma (ES) is a malignant small round cell tumor that belongs to the primitive neuroectodermal tumor class. ES generally arises in the long bones of the extremities (skeletal form) and less frequently in the soft tissue of the trunk and extremities (extra-skeletal form). Sinonasal localization of ES is an extremely rare event. About 80% of the patients are less than 20 years old with the highest incidence in the second decade of life. The combination of histopathological examination and ancillary methods (such as immunohistochemistry and molecular genetics) is extremely important to establish the diagnosis of ES. The most effective treatment plan for ES includes a multidisciplinary approach with surgery, radiotherapy and chemotherapy. This is a report of two challenging cases of sinonasal ES in two different age groups. The first case is a 13-years old female patient who presented with right nasal obstruction, anosmia, intermittent epistaxis and hearing loss. The second case is a 24-years old male patient who presented with a history of right nasal obstruction, right eye pain and periorbital edema. We present these cases due to the rarity of the disease and the difficulty of diagnosis.

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Correspondence to Ali Almomen.

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Almomen, A., Aldandan, A., Alazzeh, G. et al. Ewing’s Sarcoma of the Sinonasal Tract: A Report of Two Challenging Cases. Indian J Otolaryngol Head Neck Surg 71, 1849–1853 (2019). https://doi.org/10.1007/s12070-018-01576-9

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  • Ewing’s sarcoma
  • Sinonasal ES
  • Peripheral primitive neuroectodermal tumor