Find out more about this type of dementia that affects the speech and language areas of the brain.
Disease
Pseudobulbar affect
Pseudobulbar affect — Overview covers symptoms, treatment of this neurological condition that's characterized by uncontrollable laughing and crying.
Disease
Psoriatic arthritis
This form of arthritis affects some people who have psoriasis — a disease that features patches of itchy skin topped with silvery scales.
Disease
Pulmonary atresia
This life-threatening heart condition that's present at birth changes the way blood travels from the heart to the rest of the body.
Disease
Pulmonary atresia with intact ventricular septum
Also called PA/IVS, this rare congenital heart defect is diagnosed at or shortly after birth. Learn the symptoms and how it's treated.
Disease
Pulmonary atresia with ventricular septal defect
This congenital heart defect affects the valve between the heart and lungs and includes a hole in the heart. Learn the symptoms and how it's treated.
Disease
Reactive arthritis
This joint pain is triggered by an infection in another part of the body — often the intestines, genitals or urinary tract.
Disease
Reactive attachment disorder
Reactive attachment disorder is when an infant or young child doesn't establish healthy attachments with parents or caregivers due to neglect.
Disease
Renal artery stenosis
Learn about what happens when the arteries leading to the kidneys narrow, as well as treatments for this condition.
Disease
Rheumatoid arthritis
This ongoing condition can affect more than just the joints. It also can damage skin, eyes, lungs, heart and blood vessels.
Disease
Seasonal affective disorder (SAD)
This type of depression is related to changes in seasons and begins and ends at about the same times every year.
Disease
Separation anxiety disorder
This is intense or prolonged separation anxiety that interferes with school or other daily activities or includes panic attacks. Learn about treatment.