entrench (entrenches 3rd person present) (entrenching present participle) (entrenched past tense & past participle) If something such as power, a custom, or an idea is entrenched, it is firmly established, so that it would be difficult to change it. verb.
Leukemia. Leukemias, which are cancers of the bone marrow and blood, are the most common childhood cancers. They account for about 30% of all cancers in children. The most common types in children are acute lymphocytic leukemia (ALL) and acute myelogenous leukemia (AML).rain and central nervous system tumors. Brain and central nervous system tumors are the second most common cancers in children, making up about 26% of childhood cancers. There are many types of brain tumors, and the treatment and outlook for each is different.
1 ALL is the most common type of leukemia in children. 2  It also affects adults, especially those age 65 and older. 3  ALL affects the lymphocytic type of white blood cells. 4  acute myeloid leukemia (AML). AML affects the myeloid (also known as nonlymphocytic) type of white blood cells, the red blood cells and the cells that make platelets. 2  chronic lymphocytic leukemia (CLL). 3  CLL most commonly affects adults over age 55 and rarely occurs in children.