Fibrosarcomatous Osteosarcoma, also known as fibroblastic osteosarcoma, is related to osteogenic sarcoma and chondroblastic osteosarcoma, and has symptoms including pain An important gene associated with Fibrosarcomatous Osteosarcoma is BGLAP (Bone Gamma-Carboxyglutamate Protein), and among its related pathways/superpathways are Regulation of retinoblastoma protein and Validated transcriptional targets of deltaNp63 isoforms. Affiliated tissues include bone and heart.