title: Small-cell tumors of the liver: a cytological study of 91 cases and a review of the literature.
abstract: This study was designed to consider the cytomorphological spectrum, differential diagnosis, and the role of ancillary studies in small-cell tumors of the liver. Three independent pathologists reviewed cytological slides from 91 cases of small-cell tumors of the liver. The results were compared with the findings of three recently published studies (Cytopathology 11 (2000) 262-267; Diagn Cytopathol 19 (1998) 29-32; and Acta Cytol 40 (1996) 937-947). The role of immunohistochemistry in reaching timely and specific diagnoses was also examined. The diagnostic categories included 44 cases of metastatic small-cell undifferentiated carcinoma, 15 cases of metastatic neuroendocrine carcinoma, 10 cases of metastatic adenocarcinoma, 7 cases of malignant lymphoma, 4 cases of hepatocellular carcinoma with small-cell features, 2 cases of cholangiocarcinoma, 1 case of poorly differentiated carcinoma, and 8 cases of rare tumors including granulosa cell tumor (2 cases), sarcoma (4 cases), malignant melanoma with small-cell features (1 case), and meningioma with small-cell features (1 case). Metastatic granulosa cell-tumor, metastatic melanoma, and metastatic meningioma should be included in the differential diagnoses of small-cell malignancies found in the liver.
authors.affiliation: Department of Pathology, University of Florida Health Science Center, Jacksonville, Florida 32256, USA. walid.khalbuss@jax.ufl.edu
authors.forename: W E
authors.initials: WE
authors.lastname: Khalbuss
authors.forename: S
authors.initials: S
authors.lastname: Grigorian
authors.forename: M M
authors.initials: MM
authors.lastname: Bui
authors.forename: A
authors.initials: A
authors.lastname: Elhosseiny
mesh_terms: D000230:Adenocarcinoma / Q000378:metabolism / Q000473:pathology; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D044963:Biopsy, Fine-Needle; D006528:Carcinoma, Hepatocellular / Q000378:metabolism / Q000473:pathology; D018278:Carcinoma, Neuroendocrine / Q000378:metabolism / Q000473:pathology; D018288:Carcinoma, Small Cell / Q000378:metabolism / Q000473:pathology*; D018281:Cholangiocarcinoma / Q000378:metabolism / Q000473:pathology; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D007150:Immunohistochemistry; D007633:Keratins / Q000032:analysis; D008099:Liver / Q000737:chemistry / Q000473:pathology; D008113:Liver Neoplasms / Q000378:metabolism / Q000473:pathology*; D008223:Lymphoma / Q000378:metabolism / Q000473:pathology; D008297:Male; D008875:Middle Aged; D018396:Mucin-1 / Q000032:analysis; D012196:Review Literature as Topic; D009418:S100 Proteins / Q000032:analysis; D014746:Vimentin / Q000032:analysis
chemical_list: D018396:Mucin-1; D009418:S100 Proteins; D014746:Vimentin; D007633:Keratins