Itemu elithi "malignant neuroma" alivamisile ukusetshenziswa kumagama ezokwelapha anamuhla. Kodwa-ke, kunezimo ezimbili okungabhekiselwa kuzo njengalezi:I-Malignant peripheral nerve sheath tumor (MPNST): Lona umdlavuza ongavamile futhi ohlaselayo oqala olwelweni lwezinzwa. izinzwa ezisuka ebuchosheni nasemgogodleni ziye kuwo wonke umzimba. Ngezinye izikhathi ibizwa ngokuthi "i-malignant neuroma" ngoba ivela kumangqamuzana akha uhlobo lwesimila esiyingozi esibizwa ngokuthi i-neurofibroma.Ithumba eliyingozi le-triton: Lokhu kuyivelakancane futhi kuyivelakancane. uhlobo olunolaka lomdlavuza okwenzeka cishe ikakhulukazi kubantu abane-neurofibromatosis uhlobo 1 (NF1), ukuphazamiseka kofuzo okubangela ukuthi izimila zikhule ezinzwa kuwo wonke umzimba. I-malignant triton tumors iwuhlobo lwe-MPNST equkethe namaseli akha imisipha yohlaka lwamathambo.Kuzo zombili izimo, i-"malignant neuroma" isho uhlobo lomdlavuza ovela ezinzwa. izicubu futhi inamandla okusabalala kwezinye izingxenye zomzimba.