title: [Amyloid-negative thyroid medullary carcinoma--2 cases].
mesh_terms: D000328:Adult; D000682:Amyloid / Q000032:analysis*; D002277:Carcinoma / Q000032:analysis / Q000648:ultrastructure*; D006801:Humans; D008297:Male; D008875:Middle Aged; D013961:Thyroid Gland / Q000032:analysis / Q000648:ultrastructure; D013964:Thyroid Neoplasms / Q000032:analysis / Q000648:ultrastructure*
chemical_list: D000682:Amyloid