Table 1. General clinical features in 16 patients with PPL.
| Characteristics | MALT | DLBCL | Total No. |
|---|---|---|---|
| Case No. | 9 | 7 | 16 |
| Gender | |||
| Male | 4 | 2 | 6 |
| Female | 5 | 5 | 10 |
| Average age, years | 58.88 | 51.38 | 55.13 [32–72] |
| Smoking history | |||
| Yes | 5 | 6 | 11 |
| No | 4 | 1 | 5 |
| Autoimmune disease | 0 | 0 | 0 |
| Common symptoms | |||
| Chest discomfort | 2 | 6 | 8 |
| Cough | 3 | 7 | 10 |
| Chest pain | 2 | 5 | 7 |
| Fever | 1 | 5 | 6 |
| Apnea | 0 | 1 | 1 |
| Fatigue | 1 | 3 | 4 |
| Weight loss | 1 | 2 | 3 |
| No comfortable | 6 | 0 | 6 |
PPL, primary pulmonary lymphoma; DLBCL, diffuse large B-cell lymphoma; MALT, mucosa-associated lymphoid tissue lymphoma.