Neoadjuvant chemotherapy-enabled tumor conversion and surgical resection in pediatric primary pulmonary Ewing sarcoma: a case report

This case underscores the extreme rarity of PPEWS in children and the complexities of its diagnosis and treatment. Neoadjuvant chemotherapy can facilitate tumor conversion, while surgery plays a pivotal role in localized cases with incomplete chemotherapeutic response. Multidisciplinary management is essential for optimizing outcomes.