obsolete_gliosarcoma https://rarediseases.info.nih.gov/diseases/5653/gliosarcoma true sarcomatous glioblastoma gliosarcoma glioblastoma with sarcomatous component ICD10:G71.9 EFO:1001465 3.88.0 Orphanet:251576 MESH:D018316 Replaced by Mondo term MONDO_0016681, with which this term was previously merged. Use: http://purl.obolibrary.org/obo/MONDO_0016681 MedDRA:10018340 http://purl.obolibrary.org/obo/MONDO_0016681 DOID:3071 ICDO:9442/3 GARD:0005653 ONCOTREE:GSARC glioblastoma with a sarcomatous component NCIT:C3796 UMLS:C0206726 A rare histological variant of glioblastoma (WHO grade IV) characterized by a biphasic tissue pattern with alternating areas displaying glial and mesenchymal differentiation (WHO).