Extensive meningeal involvement as the primary manifestation of a systemic small lymphocytic lymphoma: favourable outcome after neuraxial irradiation without chemotherapy. Posted byadmin 27. July 1993 Soucek D, Ransmayr G, Twerdy K, Zwierzina H, Greil R, Fritsch E, Maier H, Pallua A, Gerstenbrand F. http://www.ncbi.nlm.nih.gov/pubmed/8518186