RESUMEN
While the frequency of primary carcinoma of the lung has recently increased in adults, it is rare in the pediatric age group. The various adult types of bronchogenic carcinoma such as squamous cell, small cell, large cell, and adenocarcinoma, are extremely rare in children. Twenty to 30 cases of primary bronchogenic carcinoma of the lung in children under 15 years of age have been reported in the English-language literature. We have experienced a small cell bronchogenic carcinoma detected by fiberoptic bronchoscopy with bronchial biopsy in a 14-year-old boy with chief complaint of hemoptysis, lung mass and persistent pneumonitis. To the best of our knowledge, this is the first reported case of primary small cell bronchogenic carcinoma in childhood under 15 years of age. We report this case with a brief review of related literatures.