a total of 265 echocardiograms were performed in 210 children with malignant neoplasms and leukemia from 1981 to 1985 and 12 cases ( 5.7 % ) of p.e . were identified : 7 affected by acute lymphatic leukemia ( all ) , 3 rhabdomyosarcoma , 1 by wilm 's tumor and 1 by ewing 's sarcoma .
C0006826
malignant neoplasms
C0027708
wilm 's tumor