[Neurologic complications in high-grade non-Hodgkin's lymphomas. Clinico-neuropathological correlations].

The neurological and electroneurographic assessment was carried out in 56 patients with high-grade non-Hodgkin lymphomas. In 37 patients the neuropathological examination was also done. Polyneuropathy was the most frequent sign of nervous system involvement, observed in 40% of patients before chemotherapy and markedly enhanced by cytostatics. The signs of the central nervous system involvement were usually caused by lymphomatous infiltrations within leptomeninges, especially in lymphoblastic and immunoblastic lymphomas. The authors stress that cerebro-spinal fluid should be investigated several times for avoiding of false negative results. Signs of lymphomatous infiltrations disappeared after treatment, while signs of polyneuropathy due to chemotherapy increased during cytostatic treatment.