title: Primary papillary serous tumor of the peritoneum. Report of a case.
abstract: In the present report we describe a rare papillary serous tumor of the peritoneum occurring in a woman without evidence of ovarian neoplasia. Histochemical, immunohistochemical and ultrastructural findings are reported, with particular emphasis on electron microscopic results and on their importance in the differential diagnosis with malignant mesotheliomas.
mesh_terms: D000368:Aged; D014408:Biomarkers, Tumor / Q000032:analysis*; D002272:Carcinoembryonic Antigen / Q000032:analysis; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D007633:Keratins / Q000032:analysis; D008562:Membrane Glycoproteins / Q000032:analysis; D008654:Mesothelioma / Q000175:diagnosis; D008854:Microscopy, Electron; D018396:Mucin-1; D009077:Mucins / Q000032:analysis*; D009363:Neoplasm Proteins / Q000032:analysis*; D010212:Papilloma / Q000737:chemistry / Q000175:diagnosis* / Q000648:ultrastructure; D010534:Peritoneal Neoplasms / Q000737:chemistry / Q000175:diagnosis* / Q000648:ultrastructure
chemical_list: D014408:Biomarkers, Tumor; D002272:Carcinoembryonic Antigen; D008562:Membrane Glycoproteins; D018396:Mucin-1; D009077:Mucins; D009363:Neoplasm Proteins; D007633:Keratins