71.   Tsyb and other scientists said they were surprised and encouraged by studies that have found no significant increase in cases of leukemia or malignant tumors among the liquidators.

72.   His liver had become damaged after years of alcohol abuse, a small malignant tumor and a long dormant hepatitis C infection.

73.   A small malignant tumor was found in early June, and Mantle will continue to have chemotherapy to combat the cancer.

74.   Doctors said his liver was failing because of a small malignant tumor, years of alcohol abuse and a long dormant hepatitis C infection.

75.   She had undergone surgery in April to remove a small malignant tumor.