Chronic leukemia: Cancer of the blood cells (leukemia) that progresses slowly.
- Chronic lymphocytic leukemia
Chronic lymphocytic leukemia: The most common form of leukemia in adults, in which lymphocytes look fairly normal but are not fully mature and do not function correctly against infection. The malignant cells are found in blood and bone marrow, collect in and enlarge the lymph nodes, a
- Chronic myelogenous leukemia
Chronic myelogenous leukemia: A chronic malignant disease in which too many white blood cells belonging to the myeloid line of cells are made in the bone marrow. Early symptoms of this form of leukemia include fatigue and night sweats. The disease is due to the growth and evolution of an abnormal clone of cells containing […]
- Chronic myelogenous leukemia, juvenile
Chronic myelogenous leukemia, juvenile: See: Juvenile myelomonocytic leukemia.
- Chronic myeloid leukemia
Chronic myeloid leukemia: A malignant disease involving the white blood cells belonging to the myeloid line that is due to a chromosome rearrangement called the Philadelphia (or Ph) chromosome translocation. Abbreviated CML. CML has several phases that succeed one another. In the
- Chronic obstructive lung disease (COLD)
Chronic obstructive lung disease (COLD): Any disorder that persistently obstructs bronchial airflow. COLD mainly involves two related diseases — chronic bronchitis and emphysema. Both cause chronic obstruction of air flowing through the airways and in and out of the lungs. The obstruction is generally permanent and progresses (becomes worse) over time. In asthma there is […]