three contained cartilage , three contained bone , four contained hyaline fibrous strands or nodules which in two instances were calcified , three contained angiomatous areas , one contained pericytoma-like areas , four contained pleomorphic and sometimes multinucleate giant cells , and one contained a mucoid matrix including spheroidal cells superficially resembling chordoma .
C0262950
bone
C0008487
chordoma