Malignant peripheral nerve sheath tumors developing multifocally in the central nervous system in a patient with neurofibromatosis type 2 - Higami,Y.; Shimokawa,I.; Kishikawa,M.; Okimoto,T.; Ohtani,H.; Tomita,M.; Tsujino,A.; Ikeda,T. (Clin Neuropathol, 1998)