brain glioblastoma gliosarcoma https://rarediseases.info.nih.gov/diseases/5653/gliosarcoma https://www.malacards.org/card/gliosarcoma GARD:0005653 MedDRA:10018340 DOID:3071 glioblastoma with a sarcomatous component UMLS:C0206726 MONDO:0016681 ONCOTREE:GSARC ICDO:9442/3 MEDGEN:64638 A rare histological variant of glioblastoma (WHO grade IV) characterized by a biphasic tissue pattern with alternating areas displaying glial and mesenchymal differentiation (WHO). sarcomatous glioblastoma gliosarcoma NCIT:C3796 glioblastoma with sarcomatous component MESH:D018316 Orphanet:251576 EFO:1001465