title: Oat cell carcinoma (apudoma) of esophagus. An ultrastructural study.
mesh_terms: D000368:Aged; D018288:Carcinoma, Small Cell / Q000473:pathology / Q000648:ultrastructure*; D003594:Cytoplasmic Granules / Q000648:ultrastructure; D004938:Esophageal Neoplasms / Q000473:pathology / Q000648:ultrastructure*; D005260:Female; D006801:Humans