Thirty-seven-year-old Monica Hussing and 40-year-old William Robinson Sr., both of Cleveland, pleaded guilty Monday to attempted involuntary manslaughter.
Willie Robinson collapsed at his home on March 22, 2008. Prosecutors say he had begged his parents to take him to see a doctor but was rejected.
Hodgkin's lymphoma is a highly treatable cancer.
Prosecutors say that while the boy was suffering, the parents claimed financial hardship but paid $87 to have a pit bull treated for fleas.
According to The Plain Dealer, each parent faces up to eight years in prison at sentencing next month.
