[Pulmonary plasma cell granuloma: report of one case]

Pulmonary plasma cell granuloma is very rare in pediatric field. Most of them are asymptomatic, and are usually found to have lung tumor accidentally by chest X-ray examination. The granuloma is characterized by the proliferation of plasma cells along with other mesenchymal elements. We report a case of 10-year-old boy who suffered from dry cough, pale face and body weight loss for a long time. Chest X-ray and CT scan revealed a lung tumor which was proved to be plasma cell granuloma after wedge biopsy. He was regularly followed up at OPD with stationary status. He may receive surgical resection in future.