TY - JOUR
T1 - Chronic granulocytic leukemia without the Philadelphia chromosome
AU - Canellos, G. P.
AU - Whang Peng, J.
AU - DeVita, V. T.
PY - 1976/1/1
Y1 - 1976/1/1
N2 - Cytogenetic studies of bone marrow were performed in 230 consecutive cases of patients with chronic granulocytic leukemia (CGL) admitted since 1961. Twenty patients lacked the Ph1 chromosome. All were previously untreated. When compared with Ph1 positive patients, CGL patients with Ph1 negative disease had a higher median age (60 compared with 42 yr) and were diagnosed at lower median leukocyte (75,000) and platelets counts (170,000). Their response to chemotherapy was generally poor, with a median survival of 15 mth compared with 44 mth for the Ph1 positive group. Four patients survived more than 5 yr and 2, more than 10 yr. Thirty five per cent of the Ph1 negative patients had aneuploid cell lines of various percentages. Absence of the Ph1 chromosome in patients with the hematologic characteristics of CGL is a bad prognostic sign.
AB - Cytogenetic studies of bone marrow were performed in 230 consecutive cases of patients with chronic granulocytic leukemia (CGL) admitted since 1961. Twenty patients lacked the Ph1 chromosome. All were previously untreated. When compared with Ph1 positive patients, CGL patients with Ph1 negative disease had a higher median age (60 compared with 42 yr) and were diagnosed at lower median leukocyte (75,000) and platelets counts (170,000). Their response to chemotherapy was generally poor, with a median survival of 15 mth compared with 44 mth for the Ph1 positive group. Four patients survived more than 5 yr and 2, more than 10 yr. Thirty five per cent of the Ph1 negative patients had aneuploid cell lines of various percentages. Absence of the Ph1 chromosome in patients with the hematologic characteristics of CGL is a bad prognostic sign.
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U2 - 10.1093/ajcp/65.4.467
DO - 10.1093/ajcp/65.4.467
M3 - Article
C2 - 1063540
AN - SCOPUS:0017279639
VL - 65
SP - 467
EP - 470
JO - American Journal of Clinical Pathology
JF - American Journal of Clinical Pathology
SN - 0002-9173
IS - 4
ER -