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Truncus arteriosus
Learn more about this congenital heart defect that makes it difficult for the heart to pump the right amount of blood to the lungs and the body.
Tattoo removal
Find out about tattoo removal options, including laser surgery, surgical removal and dermabrasion.
Statin side effects: Weigh the benefits and risks
Statin side effects can be uncomfortable but are rarely dangerous.
Shellfish allergy
It's possible to be allergic to some types of shellfish without reacting to other types. Learn more about this common food allergy.
Pulmonary hypertension
This lung condition makes the heart work harder and become weak. Changes in genes and some medicines and diseases can cause it. Know if you're at risk.
Pulmonary embolism
A blood clot blocks and stops blood flow to an artery in the lung. Often the clot starts in a leg and travels to the lung.
Peanut allergy
Peanut allergy can be serious. Find out what you need to know to prevent a life-threatening reaction, and get the latest on treatment approaches.
Myelodysplastic syndromes
Learn how medications and bone marrow transplants are used to control complications caused by these syndromes that affect the bone marrow.
Migraine
Find out about painful migraines that can last hours to days. Also can cause nausea and vomiting and reacting to light and sound.
Medication overuse headaches
When medicines that ease headache pain are used too often, they can start causing headaches. Learn about prevention and treatment.
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