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 also obstruction of airflow out of the lungs, but the obstruction is usually reversible and between attacks of asthma the flow of air through the airways is usually good.
COLD is also called chronic obstructive pulmonary disease (COPD).
- Chronic obstructive pulmonary disease
COPD. Any disorder that persistently obstructs bronchial airflow. COPD 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. Asthma is also a pulmonary disease in which […]
- Chronic otitis externa
Chronic inflammation of the skin lining the external ear canal leading to the ear drum. Can be caused by a number of problems including bacterial infection, a chronic skin disorder (eczema or seborrhea), fungus (Aspergillosis), chronic irritation (hearing aids, Q-tips), allergy, chronic drainage from middle ear disease, a tumor (rare), or it may simply be […]
- Chronic pain
Pain (an unpleasant sense of discomfort) that persists or progresses over a long period of time. In contrast to acute pain that arises suddenly in response to a specific injury and is usually treatable, chronic pain persists over time and is often resistant to medical treatments. Chronic pain may be related to a number of […]
- Chronic pancreatitis
A form of pancreatitis in which there is persistent inflammation of the pancreas. Chronic pancreatitis causes attacks of abdominal pain, nausea and vomiting that are worsened by eating or drinking, especially alcohol. The chronic inflammation can cause progressive fibrosis and destruction of the pancreas resulting in a lack of pancreatic enzymes and insulin. Deficiency of […]
- Chronic phase
Chronic phase: Refers to the early stages of chronic myelogenous leukemia. The number of immature, abnormal white blood cells in the bone marrow and blood is higher than normal, but lower than in the accelerated or blast phase.