Unusual Presentation of Ewing Sarcoma in a Nigerian Adolescent: A Case Report and Literature Review. NIGERIAN JOURNAL OF PAEDIATRICS, [S. l.], v. 52, n. 4, p. 397–402, 2026. DOI: 10.63270/njp.v52i4.2000041. Disponível em: https://www.njpaediatrics.com/index.php/njp/article/view/1285.. Acesso em: 17 jun. 2026.