title: Ultrastructural pathology.
mesh_terms: D000368:Aged; D002277:Carcinoma / Q000648:ultrastructure*; D003937:Diagnosis, Differential; D005153:Facial Neoplasms / Q000648:ultrastructure*; D006801:Humans; D008297:Male; D010235:Paraganglioma / Q000648:ultrastructure*