title: Organizing pneumonia primed by high-dose chemotherapy and lung irradiation: two pediatric cases.
abstract: A 9-year-old and a 17-year-old male patients affected by metastatic Ewing sarcoma developed an organizing pneumonia after high-dose chemotherapy with autologous peripheral blood stem cell transplantation followed by total-lung irradiation. They were successfully treated with high-dose corticosteroid for 6 months slowly tapered, with a significant clinical and radiologic response. Organizing pneumonia is a nonspecific response to various forms of lung injury such as high-dose chemotherapy and radiotherapy. For this reason, even if rare, has to be considered in children affected by lung metastatic Ewing sarcoma with persisting pulmonary symptoms after peripheral blood stem cell transplantation and total-lung irradiation. This report provides a useful description for the evaluation and treatment of pediatric patients with pulmonary infiltrates after chemotherapy and radiotherapy.
authors.affiliation: Paediatric Oncology and Haematology Unit Lalla Seràgnoli, Sant'Orsola-Malpighi Hospital, Bologna, Italy. riccardo.masetti@gmail.com
authors.forename: Riccardo
authors.initials: R
authors.lastname: Masetti
authors.forename: Salvatore
authors.initials: S
authors.lastname: Cazzato
authors.forename: Arcangelo
authors.initials: A
authors.lastname: Prete
authors.forename: Roberto
authors.initials: R
authors.lastname: Rondelli
authors.forename: Anna Olga
authors.initials: AO
authors.lastname: Di Vincenzo
authors.forename: Andrea
authors.initials: A
authors.lastname: Pession
mesh_terms: D000293:Adolescent; D000970:Antineoplastic Agents / Q000009:adverse effects; D001859:Bone Neoplasms / Q000473:pathology; D002648:Child; D003131:Combined Modality Therapy / Q000009:adverse effects; D018549:Cryptogenic Organizing Pneumonia / Q000209:etiology* / Q000628:therapy; D006801:Humans; D008175:Lung Neoplasms / Q000188:drug therapy* / Q000532:radiotherapy* / Q000556:secondary; D008297:Male; D011878:Radiotherapy / Q000009:adverse effects; D012512:Sarcoma, Ewing / Q000188:drug therapy* / Q000532:radiotherapy* / Q000556:secondary
chemical_list: D000970:Antineoplastic Agents