[Radiological features of primary pulmonary non-Hodgkin lymphoma: report of three cases].

OBJECTIVE

To describe the radiographic and CT findings of primary pulmonary non-Hodgkin lymphoma (PPL),and to evaluate percutanous transthoracic needle biopsy (PTNB) in the diagnosis of PPL.

METHODS

Chest radiographs and CT scans of three patients with histologically proven PPL were reviewed. The diagnosis of PPL was confirmed histologically with specimens obtained by means of PTNB.

RESULTS

Consolidation with air bronchograms on the chest X-ray films and CT scans was found in all cases. Multiple ill-defined nodules of various size in both lungs and a mass with air bronchogram in the right lower lobe on the CT scan were present in one case. Ground-glass opacity or reticular lesions were present in both lung fields. Hilar/mediastinal adenopathy and pericardial/pleural effusion were not features of these cases. PTNB was diagnostic in all three cases. No complications occurred during these procedures.

CONCLUSIONS

PPL has some specific imaging features. Radiographic and CT findings are helpful in the diagnosis of primary pulmonary malignant lymphoma. A specific diagnosis can be obtained by means of PTNB.