Diseases & conditions A-Z List
Diseases & Conditions A-Z List - «C»:
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Cluster headache
A cluster headache is one-sided head pain that may involve tearing of the eyes and a stuffy nose. Attacks occur regularly for 1 week to 1 year, separated by long pain-free periods that last at least 1 month, possibly longer.
See also:
Headache
Migraine headache
Tension headache
Causes
Clust...
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CMV - gastroenteritis/colitis
CMV gastroenteritis/colitis is inflammation of the stomach or intestine due to infection with cytomegalovirus (CMV).
See also:
CMV esophagitis
CMV immunocompromised host
CMV pneumonia
CMV retinitis
Congenital CMV
Causes
Cytomegalovirus (CMV) is a herpes-type virus related to the virus t...
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CMV - immunocompromised host
Cytomegalovirus (CMV) is a member of a group of herpes-type viruses that can cause disease in different parts of the body in people. This article discusses CMV in people with weakened immune systems.
Causes
Most humans are exposed to CMV in their lifetime, but typically only individuals with weaken...
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CMV - pneumonia
Cytomegalovirus (CMV) pneumonia is an infection of the lungs that can occur in people who have a suppressed immune system.
See also:
CMV esophagitis
CMV gastroenteritis
CMV retinitis
CMV - immunocompromised host
Congenital CMV
Causes
CMV pneumonia is caused by a member of a group of her...
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CMV esophagitis
Cytomegalovirus (CMV) esophagitis is a viral infection of the esophagus, the muscular tube through which food travels from the mouth to the stomach.
See also:
CMV gastroenteritis
CMV retinitis
Cytomegalovirus - immunocompromised host
Congenital cytomegalovirus
Causes
CMV esophagitis is ca...
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CMV serology test
The CMV serology test determines the presence of antibodies to cytomegalovirus (CMV) in the blood.
How the Test is Performed
Blood is typically drawn from a vein, usually from the inside of the elbow or the back of the hand. The site is cleaned with germ-killing medicine (antiseptic). The health ca...
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CO2 blood test
CO2 is carbon dioxide. This article discusses the laboratory test to measures the amount of carbon dioxide in the liquid part of your blood, called the serum.
In the body, most of the CO2 is in the form of a substance called bicarbonate (HCO3-). Therefore, the CO2 blood test is really a measure of y...
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Coal worker's pneumoconiosis
Coal worker's pneumoconiosis is a lung disease that results from breathing in dust from coal, graphite, or man-made carbon over a long period of time.
Causes
Coal worker's pneumoconiosis occurs in two forms: simple and complicated (progressive massive fibrosis, or PMF).
Your risk of developing the ...
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Coarctation of the aorta
Aortic coarctation is a narrowing of part of the aorta (the major artery leading out of the heart). It is a type of birth defect. Coarctation means narrowing.
Causes
The aorta carries blood from the heart to the vessels that supply the body with blood and nutrients. If part of the aorta is narrowed...
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Cocaine intoxication
Cocaine is a powerful central nervous system stimulant with potent cardiovascular (heart and blood vessel) side effects. Signs of intoxication typically begin with enlarged pupils, a feeling of being "high" (euphoria), agitation, and increased heart rate and blood pressure.
With higher doses, sweati...
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Cocaine withdrawal
Cocaine withdrawal occurs when a heavy cocaine user cuts down or quits taking the drug.
Causes
Cocaine produces a sense of extreme joy by causing the brain to release higher than normal amounts of some biochemicals. However, cocaine's effects on other parts of the body can be very serious or even d...
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Coccidioides complement fixation
Coccidioides complement fixation is a blood test that looks for antibodies to the fungus Coccidioides immitis. This fungus causes the disease coccidioidomycosis.
How the Test is Performed
Blood is typically drawn from a vein, usually from the inside of the elbow or the back of the hand. The site is...
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Coccidioides precipitin
Coccidioides precipitin is a blood test that looks for antibodies to the fungus Coccidioides immitis, which causes the disease coccidioidomycosis.
How the Test is Performed
Blood is drawn from a vein, usually from the inside of the elbow or the back of the hand. The site is cleaned with germ-killin...
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Coccidioidomycosis
Coccidioidomycosis is infection with the spores of the fungus Coccidioides immitis.
Causes
Infection is caused by inhaling the spores of the fungus Coccidioides immitis. This fungus is often found in desert regions. About 60% of infections cause no symptoms and are only recognized later by a positi...
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Coccidioidomycosis - acute pulmonary
Acute pulmonary coccidioidomycosis is a lung infection caused by breathing in spores of Coccidioides immitis or Coccidioides posadasii, fungi found in the soil in certain parts of the southwestern U.S., Mexico, and Central and South America.
Causes
Coccidioides infection begins in the lungs after a...