title: Patient with B-cell neoplasia (immunoblastic sarcoma) and the Philadelphia chromosome.
abstract: Philadelphia chromosome-positive cells with a standard translocation (9;22) were found in bone marrow and peripheral blood samples from a patient with non-Hodgkin's lymphoma (immunoblastic sarcoma) in the final leukemic phase. The neoplastic clone was of monoclonal B-cell character with surface Ig (mu, kappa) and mouse red blood cell receptors. This is the first case with surface Ig and t(9;22) cells reported without evidence of chronic myeloid leukemia. Also, additional consistent chromosome aberrations were found.
mesh_terms: D001402:B-Lymphocytes; D001853:Bone Marrow / Q000648:ultrastructure; D002869:Chromosome Aberrations; D002904:Chromosomes, Human, 21-22 and Y; D002906:Chromosomes, Human, 6-12 and X; D006801:Humans; D008198:Lymph Nodes / Q000473:pathology; D008214:Lymphocytes / Q000648:ultrastructure; D008223:Lymphoma / Q000235:genetics* / Q000473:pathology; D008297:Male; D008875:Middle Aged; D014178:Translocation, Genetic