Webster's New World Medical Dictionary

chronic illness
An illness that lasts 3 months or
more.
chronic leukemia
Cancer of the blood cells that
progresses slowly, as opposed to acute leukemia,
which progresses rapidly. The two major types of
chronic leukemia are chronic lymphocytic
leukemia (CLL) and chronic myeloid leukemia
(CML). See also 
leukemia, chronic phase of.
chronic lymphocytic leukemia
See 
leukemia,
chronic lymphocytic.
chronic myeloid leukemia
See 
leukemia,
chronic myeloid.
chronic obstructive lung disease
Any disorder
that persistently obstructs bronchial airflow.
Abbreviated COLD. COLD mainly involves two
related diseases: chronic bronchitis and emphy-
sema. The obstruction is generally permanent and
worsens over time. In asthma, there is also obstruc-
tion of airflow out of the lungs, but the obstruction
is usually reversible, and between asthma attacks,
the flow of air through the airways is generally good.
Also known as chronic obstructive pulmonary dis-
ease (COPD).
chronic obstructive pulmonary disease
See
chronic obstructive lung disease.
chronic peritonitis
See 
peritonitis, chronic.
85
chronic peritonitis
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chronic phase
See 
leukemia, chronic phase of.
chronic tamponade
See 
tamponade, chronic.
chronicity
The state of being chronic, having a
long duration.
Churg-Strauss syndrome
A disease character-
ized by inflammation of the blood vessels in persons
with history of asthma or allergy. The symptoms
include fatigue, weight loss, inflammation of the
nasal passages, numbness, and weakness. The diag-
nosis is confirmed with a biopsy of involved tissue.
Treatment involves stopping inflammation and sup-
pressing the immune system. Also known as allergic
granulomatosis and allergic granulomatous angiitis.