Human immunodeficiency virus-associated precursor T-lymphoblastic leukemia/lymphoblastic lymphoma: report of a case and review of the literature.
We describe a case of human immunodeficiency virus-associated T-lymphoblastic leukemia/lymphoblastic lymphoma in a 43-year-old Italian man with a history of human immunodeficiency virus infection lasting 9 years. Immunoperoxidase stains showed that neoplastic cells were positive for CD3, TdT, CD45, CD10, CD1a, CD2, CD7, CD5, and CD43 (focal). The proliferation rate was approximately 70%, assessed by Ki-67/MIB-1 staining. Flow cytometry of the marrow aspirate revealed an intermediate/cortical T-lymphoblastic phenotype: negative for surface CD3 and positive for cytoplasmic CD3, CD1a, TdT, CD2, CD7, CD5, and CD8, with partial coexpression of dimCD4. Analysis of T-cell receptor gamma polymerase chain reaction products showed clonality. T-lymphoblastic leukemia/lymphoblastic lymphoma is a very rare occurrence in the clinical setting of human immunodeficiency virus infection. It is not listed in the World Health Organization classification of lymphomas associated with human immunodeficiency virus infection. Only 4 cases of human immunodeficiency virus-associated T-lymphoblastic leukemia/lymphoblastic lymphoma are reported in the current medical literature.
Servizio di Onco-Ematologia Clinico-Sperimentale, Centro di Riferimento Oncologico, Istituto Nazionale Tumori, IRCCS, 33081 Aviano, Italy.
Debora
D
Lorenzon
Tiziana
T
Perin
Pietro
P
Bulian
Valli
V
De Re
Laura
L
Caggiari
Mariagrazia
M
Michieli
Rosa
R
Manuele
Michele
M
Spina
Valter
V
Gattei
Marco
M
Fasan
Umberto
U
Tirelli
Vincenzo
V
Canzonieri
D000328:Adult; D001483:Base Sequence; D017809:Fatal Outcome; D015334:Gene Rearrangement, gamma-Chain T-Cell Antigen Receptor; D015658:HIV Infections / Q000473:pathology*; D006801:Humans; D007945:Leukemia, Lymphoid / Q000473:pathology* / Q000821:virology*; D008297:Male; D008969:Molecular Sequence Data; D054198:Precursor Cell Lymphoblastic Leukemia-Lymphoma / Q000473:pathology* / Q000821:virology*