Letter P
PA CHEST X-RAY
PA stands for posteroanterior. Chest x-ray that is taken from the back of the patient. This is one of the two standard chest x-rays taken (1. PA chest x-ray and 2. Lateral chest x-ray).
PAGET’S DISEASE (bone)
Noncancerous bone growth.
PAGET’S DISEASE (breast)
Breast cancer that involves the skin of the nipple and/or areola. It causes “scaly” changes of the nipple. Often there is another cancerous tumor within the same breast – either DCIS or invasive ductal carcinoma. Additional breast imaging is usually needed when a woman presents with Paget’s of the nipple.
PALATINE TONSIL
Also known as the “faucial” tonsil. The tonsils at the back of the throat that can be seen when you open your mouth. They can become infected, inflamed, or even cancerous.
PALPABLE ABNORMALITY
A lump in the breast that you can easily feel.
PALPATION GUIDED BIOPSY
A biopsy performed by feeling for the mass. This is usually done by non-radiologists. Usually, the mass is big and is easy to feel.
PANCOAST TUMOR
Cancer seen at the top of the right or left lung. It may compress a sympathetic ganglion (nerve) and result in Horner’s syndrome. Please see “Horner’s syndrome”.
PANCREATIC DUCT
Tubes draining pancreas “juice” to the small intestine.
PANCREATITIS
Sick, “inflamed” pancreas. Can be caused by stone, excessive alcohol use, trauma, etc.
PAPILLARY CARCINOMA
A rare type of breast cancer that is a sub-type of invasive ductal carcinoma. It is usually small and less likely to involve the lymph nodes. It is usually very responsive to treatment with an overall favorable prognosis.
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