Prolonged survival in two cases of T-prolymphocytic leukemias with complex hypodiploid chromosomal abnormalities.
We encountered two cases of T-prolymphocytic leukemias (T-PLL) with complex hypodiploid chromosomal abnormalities. Both cases showed mild organomegaly and marked leukocytosis (144.5 x 10(9)/L, 102.6 x 10(9)/L, respectively). Although both cases developed into refractory progressive diseases at the terminal stage, the oral administration of dexamethasone was very effective for leukocytosis and thrombocytopenia in case 1 and oral cyclophosphamide was effective for reducing elevated leukocytes and the organomegaly in case 2. Despite the poor prognosis of T-PLL, our cases showed that less toxic therapies such as oral dexamethasone or cyclophosphamide may be the treatment of choice for patients with an indolent phase of T-PLL. Our study and previously reported findings suggest that complex hypodiploid chromosomal abnormalities are characteristic in T-PLL.
Third Department of Internal Medicine, Gunma University, School of Medicine, Maebashi, Japan. ayoko@showa.gunma-u.ac.jp
A
A
Yokohama
M
M
Karasawa
S
S
Takada
T
T
Matsushima
H
H
Murakami
S
S
Miyao
S
S
Sato
T
T
Naruse
D000368:Aged; D018906:Antineoplastic Agents, Alkylating / Q000627:therapeutic use; D018931:Antineoplastic Agents, Hormonal / Q000627:therapeutic use; D002869:Chromosome Aberrations; D025063:Chromosome Disorders; D003520:Cyclophosphamide / Q000627:therapeutic use; D003907:Dexamethasone / Q000627:therapeutic use; D005260:Female; D006801:Humans; D016130:Immunophenotyping; D007621:Karyotyping; D015463:Leukemia, Prolymphocytic / Q000235:genetics* / Q000401:mortality* / Q000628:therapy*; D008297:Male; D008875:Middle Aged; D011379:Prognosis; D016896:Treatment Outcome
D018906:Antineoplastic Agents, Alkylating; D018931:Antineoplastic Agents, Hormonal; D003907:Dexamethasone; D003520:Cyclophosphamide