Bronchial Carcinoid Tumors in Children and Adolescents.
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PURPOSE: Carcinoid neoplasms, even rare, are the most common pulmonary tumors during childhood. They are classically divided into typical and atypical tumors according to pathology pattern. Cornerstone therapy is to obtain a complete tumor resection. The aim was to describe clinical characteristics and treatment of young patients diagnosed with bronchial carcinoid tumors (BCT) in France. METHODS: Using the National Registry of Childhood Cancers and the pediatric very rare tumors FRACTURE (French Group for Rare Childhood Tumors) database, we conducted a nationwide retrospective multicenter study including patients aged under 18 years diagnosed with a BCT between 2011 and 2022. RESULTS: Thirty-eight patients were included (median age: 15.6 years). Diagnosis was performed during bronchoscopy (n = 23) or by immediate resection (n = 14) (missing data [MD]: 1). Twenty-six patients (68%) had typical carcinoid tumors. Tumors were mainly localized (T1/T2-N0-M0; 28 cases); five had regional lymph node involvement (LN+) and none had metastatic disease. All patients underwent tumor resection, mainly with lobectomy (n = 29) associated to lymph node dissection (35 cases, including five LN+; MD: three). Pneumonectomy was required in three cases. Margin status was complete in 36 cases (microscopic residue: two cases). No patient received medical treatment as first-line therapy. With a median follow-up of 33 months (range: 0-120), one patient with N0 R0 typical BCT developed a distant relapse. Five-year progression-free and overall survivals were, respectively, 87.5% (95% confidence interval: 38.7-98.1) and 100%. CONCLUSION: BCTs are rare and frequently "typical," with a very favorable prognosis in children after an exclusively surgical strategy, even in LN+ cases.