title: Large cell anaplastic lymphoma: evaluation of immunophenotype on paraffin and frozen sections in comparison with ultrastructural features.
abstract: Eleven cases of large cell anaplastic lymphoma (T type n = 5, B type n = 4, 0 type n = 2) were investigated using electron microscopy and immunophenotyping on formalin-fixed paraffin sections and frozen sections of fresh tissue, to determine whether morphological criteria exist for the discrimination of T, B, and 0 phenotypes. Tumour cell lineage could not be established from ultrastructural features. On paraffin material monoclonal B-cell markers Ki-B5 and L-26 served as reliable tools for recognizing the B phenotype of large cell anaplastic lymphomas (previously determined on fresh material). whereas monoclonal antibodies MT1 (CD43) and UCHL1 (CD45RO) were of limited value in lineage determination.
authors.affiliation: Department of Pathology, University of Kiel, Federal Republic of Germany.
authors.forename: M L
authors.initials: ML
authors.lastname: Hansmann
authors.forename: C
authors.initials: C
authors.lastname: Fellbaum
authors.forename: A
authors.initials: A
authors.lastname: Bohm
mesh_terms: D000328:Adult; D000368:Aged; D000911:Antibodies, Monoclonal; D015703:Antigens, CD; D005260:Female; D005615:Freezing; D006801:Humans; D016130:Immunophenotyping; D016403:Lymphoma, Large B-Cell, Diffuse / Q000276:immunology / Q000648:ultrastructure*; D008297:Male; D008875:Middle Aged; D010232:Paraffin
chemical_list: D000911:Antibodies, Monoclonal; D015703:Antigens, CD; D010232:Paraffin