Table 2 CT diagnosis and differential diagnosis of PPP
From: Primary pulmonary plasmacytoma: a case report introduction
PPP | Peripheral lung cancer | Tuberculoma | Nodular focal organizing pneumonia | |
|---|---|---|---|---|
Lobule | Superficial lobe | Deep lobules | No lobule | No lobule |
Rim | Fine burr shadow | Short hard burrs | Long burrs, satellite lesions | Peripheral visible burrs |
Density | Relatively uniform density, occasionally empty | Most uneven, jagged hole in the inner wall | Calcification, hollow with smooth inner wall | Uneven density, pus cavity |
Enhanced CT scan | Moderate uniform reinforcement | Obvious strengthening | No or light enhancement | Uniform or delayed enhancement |
Pleural | Pleural retraction | Subpleural focal fatty infiltration | Pleural thickening/calcification | Adjacent pleural thickening |