Table 2. Coexistence of autoimmune disease and thymic tumors.
| Thymic tumors | n | % | Autoimmune disease | P | ||
|---|---|---|---|---|---|---|
| (+) | (–) | |||||
| Thymic epithelial tumor | Thymoma | 94 | 57.7 | 2 | 92 | <0.001 |
| Thymic cancer | 13 | 8.0 | 1 | 12 | ||
| Neuroendocrine tumor (carcinoid) | 1 | 0.6 | 0 | 1 | ||
| Lymphoproliferative lesion | Thymic MALT lymphoma | 4 | 2.5 | 4 | 0 | |
| DLBCL | 1 | 0.6 | 0 | 1 | ||
| Lymphoid hyperplasia | 3 | 1.8 | 0 | 3 | ||
| Mesenchymal tumor | Lipoma | 2 | 1.2 | 0 | 2 | |
| Non-neoplastic lesion | Thymic cyst | 39 | 23.9 | 0 | 39 | |
| Thymic hyperplasia | 5 | 3.1 | 1 | 4 | ||
| Thymic amyloidosis | 1 | 0.6 | 1 | 0 | ||
| Total | 163 | 9 | 154 | |||
MALT, mucosa-associated lymphoid tissue; DLBCL, Diffuse large B-cell lymphoma.