There was no significant difference in HSP27 and 70 serum concentrations in patients with TETs with or without paraneoplastic MG (HSP27[pg/ml]: TETs MG+ 434.6 ± 120.2 vs. TETs MG− 533.2 ± 80.4; p = 0.538 and HSP70[ng/ml]: TETs MG+ 1.9 ± 0.3 vs. TETs MG− 2.0 ± 0.3; p = 0.836; Table 3). The gene discussed is HSPA1A; the disease is myasthenia gravis.