The derivation of so-called "giant-cell" and "spindle-cell" undifferentiated thyroidal neoplasms.
D000328:Adult; D002277:Carcinoma / Q000209:etiology / Q000473:pathology*; D002467:Cell Nucleus; D046508:Culture Techniques; D003593:Cytoplasm; D003896:Desmosomes; D004847:Epithelial Cells; D004848:Epithelium / Q000473:pathology; D005260:Female; D005347:Fibroblasts; D005354:Fibrosarcoma / Q000209:etiology / Q000473:pathology; D006801:Humans; D008223:Lymphoma / Q000209:etiology / Q000473:pathology; D008297:Male; D008854:Microscopy, Electron; D008875:Middle Aged; D013964:Thyroid Neoplasms / Q000209:etiology / Q000473:pathology*