Two patients (n = 2/8; 25%) were suspected to have a paraneoplastic AE, one with anti-GABAB receptor AB in serum and a known B-cell non-Hodgkin's lymphoma and one with anti-CASPR2 AB in serum and a large cell bronchial carcinoma (Table 2). The gene discussed is CNTNAP2; the disease is B-cell non-Hodgkin lymphoma.