title: Routine immunofluorescent and histochemical analysis of bone marrow involvement of lymphoma/leukaemia: the use of cryostat sections.
abstract: Enzyme histochemical and immunohistological (immuno-fluorescence and -peroxidase) techniques have been routinely used for investigating over 70 normal and pathological bone marrow samples. This recently standardized diagnostic procedure is very quick and can be performed in a few hours. In 6 cases the clinical diagnosis of leukaemia/lymphoma has become apparent only after the immunohistological analysis of the bone marrow. In 6 other cases the information about the staging of B cell malignancies was superior in the frozen biopsies to the paraffin embedded preparations. Amongst many other features the monoclonality of B CLL/lymphomas, the special features of B CLL infiltrates (RFA-1+, Leu-1+, HLA-DR+, SmIg+), follicular lymphoma deposits (containing follicular dendritic cells) and non-T, non-B acute lymphoblastic leukaemic blasts (terminal transferase+, HLA-DR+) as well as the sometimes conspicuous presence of infiltrating normal T cells could be clearly and reproducibly demonstrated.
mesh_terms: D000293:Adolescent; D000328:Adult; D001853:Bone Marrow / Q000473:pathology*; D001855:Bone Marrow Diseases / Q000473:pathology*; D001856:Bone Marrow Examination; D002648:Child; D002675:Child, Preschool; D005455:Fluorescent Antibody Technique; D005629:Frozen Sections; D006651:Histocytochemistry; D006689:Hodgkin Disease / Q000473:pathology; D006801:Humans; D007124:Immunoenzyme Techniques; D007938:Leukemia / Q000473:pathology*; D007945:Leukemia, Lymphoid / Q000473:pathology; D008223:Lymphoma / Q000473:pathology*; D008867:Microtomy