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Review Date:
10/13/2006
Paronychia is a skin infection that occurs around the nails.
Review Date:
4/12/2007
PCH is a rare blood disorder caused when a person is exposed to the cold, and the immune system makes proteins called antibodies that destroy red blood cells.
Review Date:
3/13/2007
Paroxysmal nocturnal hemoglobinuria is a rare disease in which red blood cells break down earlier than normal.
Review Date:
3/22/2007
Paroxysmal supraventricular tachycardia (PSVT) is a rapid heart rate, which occurs from time to time (paroxysmal). PSVT starts with events taking place above the ventricles.
Review Date:
5/31/2006
A partial seizure is an episode of abnormal electrical activity in one specific part of the brain.
Review Date:
8/7/2006
Partial thromboplastin time (PTT) is a blood test that looks at how long it takes for blood to clot. It can help tell if you have bleeding or clotting problems.
Review Date:
3/9/2007
Passive-aggressive personality disorder is a chronic condition in which a person seems to passively comply with the desires and needs of others, but actually passively resists them, in the process becoming increasingly hostile and angry.Psychiatrists no longer recognize this condition as an official diagnosis. However, the symptoms are problematic to many people and may be helped by professional attention, so we include it here.
Review Date:
11/15/2006
A patch is a flat area of color change on the skin that is greater than 10 millimeters in diameter.
Review Date:
10/18/2006
Patent ductus arteriosus (PDA) is a condition in which a blood vessel called the ductus arteriosus fails to close normally in an infant soon after birth. (The word "patent" means open.)The condition leads to abnormal blood flow between the aorta and pulmonary artery, two major blood vessels surrounding the heart.
Review Date:
12/10/2007