High levels of the hormone cortisol in your body cause this endocrine disorder. Learn about symptoms, causes and treatment.
Disease
Cutaneous B-cell lymphoma
Learn about this type of cancer that starts in the white blood cells and affects the skin. Treatment options include surgery, radiation and chemotherapy.
Disease
Cutaneous T-cell lymphoma
Learn about this type of non-Hodgkin lymphoma that attacks the skin. Find out about symptoms, diagnosis and treatments.
Disease
Cyclic vomiting syndrome
Cyclic vomiting syndrome often starts in childhood and is marked by spells of vomiting several times an hour over a period of hours or days.
Disease
Cyclothymia (cyclothymic disorder)
Also called cyclothymic disorder, this mood disorder causes emotional ups and downs that are less extreme than bipolar disorder. Learn about treatment.
Disease
Cystic fibrosis
This condition, passed down in families, causes damage to the lungs, digestive system and other organs. Learn about screening and newer treatments.
Disease
Cystitis
Cystitis is a condition that affects the bladder. It happens most often when bacteria cause an infection. But there are other causes, too.
Disease
Cytomegalovirus (CMV) infection
Understand the symptoms and treatment of this common viral infection, which can cause serious health issues for babies and people who have weakened immune systems.
Disease
Desmoplastic small round cell tumors
These rare, aggressive cancers most often form in the abdomen. Learn about DSRCT treatments, including surgery, chemotherapy and radiation therapy.
Disease
Diabetic coma
iabetic coma is a life-threatening disorder that can happen when blood sugar is very high or very low. Learn about its causes, treatment and prevention.
Disease
Diffuse large B-cell lymphoma
Find out more about the symptoms, diagnosis and treatment of this type of non-Hodgkin lymphoma.
Disease
Dilated cardiomyopathy
In this heart muscle disease, the heart's main pumping chamber stretches and can't pump blood well. Learn about the causes and treatment.