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Renal size as a Prognostic Factor in Childhood Acute Lymphocytic Leukemia

Journal of the Korean Pediatric Society 1994;37(2):174-179.
Published online February 15, 1994.
Renal size as a Prognostic Factor in Childhood Acute Lymphocytic Leukemia
Soo Kyung Yun1, Chang Hyun Yang1, Chuhl Joo Lyu1, Seung Hwan Oh1, Kir Young Kim1, Myung Joon Kim2
1Department of Pediatrics, College of Medicine, Yonsie University, Seoul, Korea
2Department of Radiology, College of Medicine, Yonsie University, Seoul, Korea
급성 림프구성 백혈병 환아에서 진단당시 신장종대의 임상적 의의
윤수경1, 양창현1, 유철주1, 오승환1, 김길영1, 김명준2
1연세대학교 의과대학 소아과학교실
2연세대학교 의과대학 방사선과학교실
Abstract
The Kidney size is of special interest during the diagnostic work up of acute lymphocytic leukemia. But is still uncertain whether a finding of kidney enlargement at presentation has long-term prognostic value. We therefore reviewed the kidney size in children with acute lymphocytic leukemia by abdominal ultrasonograms at the time of diagnosis (n=54) and examined if there was any statistical significance between the kidney size and prognostic parameters and later outcome. The following results were obtained 1) Among the patients whose kidney size was enlarged over 4SD from the normal, hepatomegaly in 3 cases (20%), splenomegaly in 3 cases(20%), mediastinal widening in 2 cases (13%) were noted. The interrelation between kidney size and infiltration of extramedullary system had no statistical significance. 2) Among the patients whose kidney size was enlarged over 4SD from the normal, patients under age 2 and over age 10 in 5 cases (33%), male in 8 cases(53%), involvement of central nervous system in 1 cases (7%), WBC count over 100109/L in 3 cases(20%), Hb over 10g/dl in 3 cases (20%) and platelet count below 100109/L in 3 cases (20%) were noted. There was no statistical significance between kidney size and infiltration of extramedullary system. 3) Two Year survival rate based upon kidney size was; 95% in the group below 2SD, 79% between 2SD and 4SD, 59% over 4SD. And 2 Year event free survival rate was 71%, 56% and 58 respectively. In conclusion, the kidney size in childhood acute lymphcytic leukemia at the time of diagnosis influences the late outcome, but it is not a meaning prognostic parameters.
Key Words: Acute lymphocytic leukemia, Kidney


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