title: Giant cell tumors of tendon sheath. An electron microscopical study of 11 cases.
abstract: Light and electron microscopy of 11 giant cell tumors of tendon sheath revealed a pleomorphic cell population in which the giant cells had similarities to osteoclasts, and the stromal cells had similarities to primitive mesenchymal cells, osteoblasts, fibroblasts, and histiocytes. I suggest that giant cell tumors of tendon sheath are derived from mesenchymal cells with partial osseous differentiation.
mesh_terms: D000328:Adult; D000368:Aged; D002118:Calcium; D003593:Cytoplasm / Q000648:ultrastructure; D005260:Female; D005385:Fingers; D005870:Giant Cell Tumors / Q000209:etiology* / Q000473:pathology / Q000648:ultrastructure; D006801:Humans; D006882:Hydroxyapatites; D002479:Inclusion Bodies / Q000648:ultrastructure; D008297:Male; D008854:Microscopy, Electron; D008875:Middle Aged; D013710:Tendons; D013933:Thumb
chemical_list: D006882:Hydroxyapatites; D002118:Calcium