Clinical Characteristics of Children with Nasal BCOR-Rearranged Ewing-like Sarcoma: A Case Report and Literature Review.

Ewing-like sarcomas (ELS) are round cell mesenchymal neoplasms that are highly aggressive to bone and/or soft tissue. However, they rarely occur in the nose, with no reported such cases in the medical literature to date. Here, we reported the case of a two-year-old Chinese boy who presented with a mass in the left nasal cavity. Surprisingly, the final histopathological diagnosis of the nasal mass was determined to be a subtype of ELS, BCOR -rearranged sarcoma. Therefore, we retrospectively analyzed the clinical data of this case and reviewed the relevant literature on ELS and BCOR -rearranged sarcoma. The purpose of this article is to provide new insights into the clinical characteristics of children with BCOR -rearranged Ewing-like sarcoma and to improve the understanding of this disease.