Psammoma bodies in meningioma. Appearance by scanning electron microscopy.
Psammoma bodies from eight memingiomas have been examined by both light and scanning electron microscopy (SEM). The bodies are primarily composed of calcium apatite which is deposited within a nidus of tightly laminated collagen fibers.
D000293:Adolescent; D000328:Adult; D000368:Aged; D001031:Apatites / Q000032:analysis; D002118:Calcium / Q000032:analysis; D003238:Connective Tissue / Q000032:analysis; D006801:Humans; D008577:Meningeal Neoplasms / Q000648:ultrastructure*; D008579:Meningioma / Q000648:ultrastructure*; D008855:Microscopy, Electron, Scanning; D008875:Middle Aged
D001031:Apatites; D002118:Calcium