Lymphoproliferative lung disorders | Computed tomography features |
MALT lymphoma | Nodules or consolidation |
Peribronchovascular | |
Multiple/bilateral (70%) | |
Hilar/mediastinal nodes (30%) | |
Ground-glass attenuation (halo sign) | |
Rarely cysts, pleural effusion, tree-in-bud | |
High-grade primary large pulmonary B-cell lymphomas | Nodule or mass cavitation in 50% Rarely pleural effusion |
Lymphomatoid granulomatosis | Bilateral nodules/masses |
Peribronchovascular | |
Coalescence and/or cavitate | |
Pleural effusion (30%) | |
Hilar adenopathies (<25%) | |
Migratory | |
Uncommon: single nodules, alveolar opacities and reticulonodular diffuse lesions | |
Follicular lymphoma | Ground-glass opacities (crazy paving) |
Nodules | |
Intravascular large B-cell lymphoma | Bilateral reticular shadows |
Reticulonodular or nodular shadows | |
Ground-glass opacities | |
Wedge-shaped subpleural opacities | |
Pleural effusion | |
Nasal-type T-/NK-lymphomas | Nodules or excavated masses |
Pleural effusion | |
Anaplastic large cell lymphoma, T-cell type | Masses or single nodules |
Mycosis fungoides | Nodules with halo signs |
Peripheral consolidation | |
Crazy paving pattern | |
Primary pulmonary Hodgkin disease | Solitary mass or multinodular disease |
Air bronchograms or cavitation | |
Pleural effusion, lymphadenopathy |
MALT: mucosa-associated lymphoid tissue; NK: natural killer cell.