Biomaterial Database

Malignant peripheral nerve sheath tumors: an update. 2005

Bruno Fuchs, and Robert J Spinner, and Michael G Rock

Balgrist University Hospital, University of Zurich, Zurich, Switzerland.

Malignant peripheral nerve sheath tumors (MPNSTs) are highly malignant cancers that account for approximately 5-10% of all soft tissue sarcomas. They occur either sporadically, in association with neurofibromatosis type 1 (NF1), or subsequent to radiation therapy. Histologically, MPNSTs resemble fibrosarcomas in their basic organization. Immunohistochemistry, particularly S100, plays an important role in the diagnosis. At the molecular level, loss of the NF1 gene and high levels of Ras-activity are hallmarks. Magnetic resonance imaging (MRI) is the most helpful imaging technique to clearly identify tumoral extent and to suggest neurogenic origin. The presence of heterogeneity with evidence of necrosis and hemorrhage on MRI and increased uptake on positron emission tomography scan may prove helpful in detecting malignant changes. MPNSTs need to be approached by a multidisciplinary team, assuring the complete surgical removal of the lesion. Disease-free and overall survival statistics reinforce the aggressive nature of this unique soft tissue tumor.

UI	MeSH Term	Description	Entries
D007150	Immunohistochemistry	Histochemical localization of immunoreactive substances using labeled antibodies as reagents.	Immunocytochemistry,Immunogold Techniques,Immunogold-Silver Techniques,Immunohistocytochemistry,Immunolabeling Techniques,Immunogold Technics,Immunogold-Silver Technics,Immunolabeling Technics,Immunogold Silver Technics,Immunogold Silver Techniques,Immunogold Technic,Immunogold Technique,Immunogold-Silver Technic,Immunogold-Silver Technique,Immunolabeling Technic,Immunolabeling Technique,Technic, Immunogold,Technic, Immunogold-Silver,Technic, Immunolabeling,Technics, Immunogold,Technics, Immunogold-Silver,Technics, Immunolabeling,Technique, Immunogold,Technique, Immunogold-Silver,Technique, Immunolabeling,Techniques, Immunogold,Techniques, Immunogold-Silver,Techniques, Immunolabeling
D008279	Magnetic Resonance Imaging	Non-invasive method of demonstrating internal anatomy based on the principle that atomic nuclei in a strong magnetic field absorb pulses of radiofrequency energy and emit them as radiowaves which can be reconstructed into computerized images. The concept includes proton spin tomographic techniques.	Chemical Shift Imaging,MR Tomography,MRI Scans,MRI, Functional,Magnetic Resonance Image,Magnetic Resonance Imaging, Functional,Magnetization Transfer Contrast Imaging,NMR Imaging,NMR Tomography,Tomography, NMR,Tomography, Proton Spin,fMRI,Functional Magnetic Resonance Imaging,Imaging, Chemical Shift,Proton Spin Tomography,Spin Echo Imaging,Steady-State Free Precession MRI,Tomography, MR,Zeugmatography,Chemical Shift Imagings,Echo Imaging, Spin,Echo Imagings, Spin,Functional MRI,Functional MRIs,Image, Magnetic Resonance,Imaging, Magnetic Resonance,Imaging, NMR,Imaging, Spin Echo,Imagings, Chemical Shift,Imagings, Spin Echo,MRI Scan,MRIs, Functional,Magnetic Resonance Images,Resonance Image, Magnetic,Scan, MRI,Scans, MRI,Shift Imaging, Chemical,Shift Imagings, Chemical,Spin Echo Imagings,Steady State Free Precession MRI
D009456	Neurofibromatosis 1	An autosomal dominant inherited disorder (with a high frequency of spontaneous mutations) that features developmental changes in the nervous system, muscles, bones, and skin, most notably in tissue derived from the embryonic NEURAL CREST. Multiple hyperpigmented skin lesions and subcutaneous tumors are the hallmark of this disease. Peripheral and central nervous system neoplasms occur frequently, especially OPTIC NERVE GLIOMA and NEUROFIBROSARCOMA. NF1 is caused by mutations which inactivate the NF1 gene (GENES, NEUROFIBROMATOSIS 1) on chromosome 17q. The incidence of learning disabilities is also elevated in this condition. (From Adams et al., Principles of Neurology, 6th ed, pp1014-18) There is overlap of clinical features with NOONAN SYNDROME in a syndrome called neurofibromatosis-Noonan syndrome. Both the PTPN11 and NF1 gene products are involved in the SIGNAL TRANSDUCTION pathway of Ras (RAS PROTEINS).	Peripheral Neurofibromatosis,Recklinghausen Disease of Nerve,von Recklinghausen Disease,Cafe-au-Lait Spots with Pulmonic Stenosis,Molluscum Fibrosum,NF1 (Neurofibromatosis 1),Neurofibromatosis I,Neurofibromatosis Type 1,Neurofibromatosis Type I,Neurofibromatosis, Peripheral Type,Neurofibromatosis, Peripheral, NF 1,Neurofibromatosis, Peripheral, NF1,Neurofibromatosis, Type 1,Neurofibromatosis, Type I,Pulmonic Stenosis with Cafe-au-Lait Spots,Recklinghausen Disease, Nerve,Recklinghausen's Disease of Nerve,Recklinghausens Disease of Nerve,Watson Syndrome,von Recklinghausen's Disease,Cafe au Lait Spots with Pulmonic Stenosis,Neurofibromatoses, Peripheral,Neurofibromatoses, Type I,Neurofibromatosis, Peripheral,Peripheral Neurofibromatoses,Pulmonic Stenosis with Cafe au Lait Spots,Syndrome, Watson,Type 1 Neurofibromatosis,Type 1, Neurofibromatosis,Type I Neurofibromatoses,Type I, Neurofibromatosis,von Recklinghausens Disease
D011905	Genes, ras	Family of retrovirus-associated DNA sequences (ras) originally isolated from Harvey (H-ras, Ha-ras, rasH) and Kirsten (K-ras, Ki-ras, rasK) murine sarcoma viruses. Ras genes are widely conserved among animal species and sequences corresponding to both H-ras and K-ras genes have been detected in human, avian, murine, and non-vertebrate genomes. The closely related N-ras gene has been detected in human neuroblastoma and sarcoma cell lines. All genes of the family have a similar exon-intron structure and each encodes a p21 protein.	Ha-ras Genes,Ki-ras Genes,N-ras Genes,c-Ha-ras Genes,c-Ki-ras Genes,c-N-ras Genes,ras Genes,v-Ha-ras Genes,v-Ki-ras Genes,H-ras Genes,H-ras Oncogenes,Ha-ras Oncogenes,K-ras Genes,K-ras Oncogenes,Ki-ras Oncogenes,N-ras Oncogenes,c-H-ras Genes,c-H-ras Proto-Oncogenes,c-Ha-ras Proto-Oncogenes,c-K-ras Genes,c-K-ras Proto-Oncogenes,c-Ki-ras Proto-Oncogenes,c-N-ras Proto-Oncogenes,ras Oncogene,v-H-ras Genes,v-H-ras Oncogenes,v-Ha-ras Oncogenes,v-K-ras Genes,v-K-ras Oncogenes,v-Ki-ras Oncogenes,Gene, Ha-ras,Gene, Ki-ras,Gene, v-Ha-ras,Gene, v-Ki-ras,Genes, Ha-ras,Genes, Ki-ras,Genes, N-ras,Genes, v-Ha-ras,Genes, v-Ki-ras,H ras Genes,H ras Oncogenes,H-ras Gene,H-ras Oncogene,Ha ras Genes,Ha ras Oncogenes,Ha-ras Gene,Ha-ras Oncogene,K ras Genes,K ras Oncogenes,K-ras Gene,K-ras Oncogene,Ki ras Genes,Ki ras Oncogenes,Ki-ras Gene,Ki-ras Oncogene,N ras Genes,N ras Oncogenes,N-ras Gene,N-ras Oncogene,c H ras Genes,c H ras Proto Oncogenes,c Ha ras Genes,c Ha ras Proto Oncogenes,c K ras Genes,c K ras Proto Oncogenes,c Ki ras Genes,c Ki ras Proto Oncogenes,c N ras Genes,c N ras Proto Oncogenes,c-H-ras Gene,c-H-ras Proto-Oncogene,c-Ha-ras Gene,c-Ha-ras Proto-Oncogene,c-K-ras Gene,c-K-ras Proto-Oncogene,c-Ki-ras Gene,c-Ki-ras Proto-Oncogene,c-N-ras Gene,c-N-ras Proto-Oncogene,ras Gene,ras Oncogenes,v H ras Genes,v H ras Oncogenes,v Ha ras Genes,v Ha ras Oncogenes,v K ras Genes,v K ras Oncogenes,v Ki ras Genes,v Ki ras Oncogenes,v-H-ras Gene,v-H-ras Oncogene,v-Ha-ras Gene,v-Ha-ras Oncogene,v-K-ras Gene,v-K-ras Oncogene,v-Ki-ras Gene,v-Ki-ras Oncogene
D006801	Humans	Members of the species Homo sapiens.	Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000818	Animals	Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA.	Animal,Metazoa,Animalia
D015870	Gene Expression	The phenotypic manifestation of a gene or genes by the processes of GENETIC TRANSCRIPTION and GENETIC TRANSLATION.	Expression, Gene,Expressions, Gene,Gene Expressions
D016514	Genes, Neurofibromatosis 1	Tumor suppressor genes located on the long arm of human chromosome 17 in the region 17q11.2. Mutation of these genes is thought to cause NEUROFIBROMATOSIS 1, Watson syndrome, and LEOPARD syndrome.	Genes, nf1,Neurofibromatosis 1 Genes,nf1 Genes,Genes, nf 1,Gene, nf 1,Gene, nf1,Neurofibromatosis 1 Gene,nf 1 Gene,nf 1 Genes,nf1 Gene
D018317	Nerve Sheath Neoplasms	Neoplasms which arise from nerve sheaths formed by SCHWANN CELLS in the PERIPHERAL NERVOUS SYSTEM or by OLIGODENDROCYTES in the CENTRAL NERVOUS SYSTEM. Malignant peripheral nerve sheath tumors, NEUROFIBROMA, and NEURILEMMOMA are relatively common tumors in this category.	Nerve Sheath Neoplasm,Nerve Sheath Tumor,Perineurioma,Peripheral Nerve Sheath Tumor,Peripheral Nerve Sheath Tumors,Neoplasms, Nerve Sheath,Nerve Sheath Tumors,Nerve Sheath Tumors, Peripheral,Tumors of the Nerve Sheath,Neoplasm, Nerve Sheath,Perineuriomas,Sheath Tumor, Nerve,Sheath Tumors, Nerve,Tumor, Nerve Sheath,Tumors, Nerve Sheath