Purpose: Primary p 비 monary lymphoma(PPL) arising in the lung as the initial site is very rare. Authors experienced two cases of PPL and report the radiologic findings and clinical characteristicswith a brief reviewofthe literature. Methods and Materials: Plain chest radiograph and enhanced axial CT scan of the chest were taken. We analyzed radi 이 ogic findings of the two cases and correlated with broncoscopic and pathologic findings. Results: Plain chest radiograph showed a mass like

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... ive lesion on RML without peripheral atelectasis. Chest CT scan revealed a mass like consolidation with airbronchogram and the absence of a hilar mass or thoracic adenopathy. Percutaneous needle aspiration and biopsy(PCNA and PCNB) of the RML mass confirmed B-celllymphoma , in both cases. Conclusion: PPL must be included in the differential diagnosis of chronic alveolar consolidation such as bronchioloalveolar cell carcinoma .