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Diseases & conditions A-Z List

Diseases & Conditions A-Z List - «P»:

  1. Pancreatic pseudocyst Pancreatic pseudocyst
    A pancreatic pseudocyst is a fluid-filled sac in the abdomen, which may also contain tissue from the pancreas, pancreatic enzymes, and blood. Causes The pancreas is an organ located behind the stomach that produces chemicals (called enzymes) needed to digest food. It also produces the hormones insu...
  2. Pancreatitis Pancreatitis
    Pancreatitis is inflammation of the pancreas. The pancreas is a gland located behind the stomach. It releases the hormones insulin and glucagon, as well as digestive enzymes that help you digest and absorb food. Causes For more information, see the specific type of pancreatitis: Acute pancreatiti...
  3. Pancreatitis - discharge Pancreatitis - discharge
    You were in the hospital because you have pancreatitis, or swelling of the pancreas You may have had blood tests and imaging exams, such as a CT scan or ultrasound. You may have been given drugs to help your pain or fight and prevent infections. You likely were given fluids through an intravenous (I...
  4. Panic disorder Panic disorder
    Panic disorder is a type of anxiety disorder in which someone has repeated attacks of intense fear that something bad will occur when not expected. The person lives in fear that another attack will occur. See also: Generalized anxiety disorder Causes The exact cause of panic disorders is unknown. ...
  5. Panic disorder with agoraphobia Panic disorder with agoraphobia
    Panic disorder with agoraphobia is an anxiety disorder in which there are repeated attacks of intense fear and anxiety, and a fear of being in places where escape might be difficult, or where help might not be available. Agoraphobia usually involves fear of crowds, bridges, or of being outside alone...
  6. Pantothenic acid and biotin Pantothenic acid and biotin
    Pantothenic acid and biotin are types of B vitamins. They are water-soluble, which means that the body can't store them. If the body can't use all of the vitamin, the extra leaves the body through the urine. Therefore, these vitamins must be replaced every day. Function Pantothenic acid and biotin ...
  7. Pap smear Pap smear
    A Pap smear is an examination under the microscope of cells scraped from the tip of the cervix. The cervix is the lower part of the uterus (womb) that opens at the top of the vagina. How the Test is Performed The Pap smear is done as part of a gynecological exam. You will lie on a table and place y...
  8. Papule Papule
    A papule is solid, raised spot on the skin that is less than 1 centimeter wide. See also: Skin lesion ...
  9. Paradichlorobenzene poisoning Paradichlorobenzene poisoning
    Paradichlorobenzene is a white, solid chemical with a very strong odor. Poisoning can occur if you swallow this chemical. This is for information only and not for use in the treatment or management of an actual poison exposure. If you have an exposure, you should call your local emergency number (su...
  10. Parainfluenza Parainfluenza
    Parainfluenza refers to a group of viruses that lead to upper and lower respiratory infections. Causes There are four types of parainfluenza virus, all of which can cause upper respiratory infections or lower respiratory infections (pneumonia) in adults and children. The virus is responsible for ap...
  11. Paranoid personality disorder Paranoid personality disorder
    Paranoid personality disorder is a psychiatric condition in which a person is very distrustful and suspicious of others. Causes Personality disorders are long-term (chronic) patterns of behavior that cause lasting problems with work and relationships. The cause of paranoid personality disorder is u...
  12. Paraphimosis Paraphimosis
    Paraphimosis is the inability of an uncircumcised male to pull the foreskin back over the head of the penis. Causes Paraphimosis and phimosis are related conditions caused by swelling and irritation (inflammation) and narrowing of the foreskin. Causes of inflammation include: Infection, which may ...
  13. Parapneumonic pleural effusion Parapneumonic pleural effusion
    Parapneumonic pleural effusion is an build up of fluid between layers of the tissue lining the lung and the chest cavity, which develops in the setting of pneumonia....
  14. Paraquat poisoning Paraquat poisoning
    Paraquat (dipyridylium) is a highly toxic weed killer once promoted by the United States for use in Mexico to destroy marijuana plants. Research found that this herbicide was dangerous to workers who applied it to the plants. This article discusses the health problems that can occur from swallowing ...
  15. Parathyroid adenoma Parathyroid adenoma
    A parathyroid adenoma is a noncancerous (benign) tumor of the parathyroid glands, which are located in the neck. Causes The parathyroid glands in the neck help control calcium use and removal by the body. They do this by producing parathyroid hormone, or PTH. PTH helps control calcium, phosphorus, ...