Acute lymphocytic leukemia is the most common type of cancer in children, and treatments result in a good chance for a cure.

Acute lymphocytic leukemia (ALL) is a type of cancer of the blood and bone marrow - the spongy tissue inside bones where blood cells are made.

The interstitial lymphocytic infiltrates shown here are characteristic for a viral myocarditis, which is probably the most common type of myocarditis.