CD8+ polylobated T-cell leukemia/lymphoma. A case report with immunophenotypic, ultrastructural, gene rearrangement, karyotypic, and DNA content analysis and autopsy description.
Polylobated lymphoma is a morphologic variant of malignant lymphoma characterized by large pleomorphic neoplastic cells with polylobated nuclei. We report an unusual case in a 57-year-old man with a 9-year history of an antecedent low-grade peripheral T-cell lymphoma with dermal involvement. The polylobated lymphoma expressed the CD2, 8, 45, and DR surface antigens and had a clonally rearranged T-cell receptor beta-chain gene. The DNA content analysis indicated that most of the neoplasm was DNA diploid and tetraploid, with a high S phase. Cytogenetic analysis demonstrated the presence of a clone with an abnormal karyotype 45, X, -Y, -1, -10, -10, -17, -19, +5 mar. Serology and polymerase chain reaction analysis showed no evidence of retroviral infection (human immunodeficiency virus types 1 and 2 and human T-cell lymphotropic virus types I and II). We review the literature on polylobated T-cell lymphoma.
Friedman
H D
HD
Department of Pathology and Laboratory Medicine, Syracuse, NY 13210.
Hutchison
R E
RE
Smith
J R
JR
Gonchoroff
N J
NJ
Stein
C K
CK
Poiesz
B J
BJ
D016827:CD8 Antigens / Q000032:analysis*; D004273:DNA, Neoplasm / Q000032:analysis; D015321:Gene Rearrangement; D006801:Humans; D007150:Immunohistochemistry; D016130:Immunophenotyping; D007621:Karyotyping; D016399:Lymphoma, T-Cell / Q000235:genetics / Q000276:immunology / Q000473:pathology*; D008297:Male; D008854:Microscopy, Electron; D008875:Middle Aged
D016827:CD8 Antigens; D004273:DNA, Neoplasm