Papillary muscle
A small muscle within the heart that anchors the heart valves. The anchor ropes are the chordae tendineae, thread-like bands of fibrous tissue that attach on one end to the edges of the tricuspid and mitral valves of the heart and on the other end to the papillary muscles.
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- Papillary renal cell carcinoma
A type of kidney cancer that accounts for 15 to 20% of renal carcinomas. It occurs in both sporadic and familial forms. Hereditary papillary renal carcinoma is characterized by the development of multiple papillary tumors in both kidneys. The pattern of inheritance is consistent with autosomal dominant transmission with reduced penetrance. The disorder is distinct […]
- Papillary tumor
A tumor that is shaped like a small mushroom, with its ‘stem’ attached to an organ, such as the inner lining of the bladder.
- Papilledema
Swelling of the head of the optic nerve, a sign of increased intracranial pressure. The optic nerve head, also called the optic disk or papilla, is the area where the optic nerve (the nerve that carries messages from the eye to the brain) enters the eyeball. The finding of papilledema is made with the ophthalmoscope […]
- Papilloma
A small solid benign tumor with a clear-cut border that projects above the surrounding tissue. A raised wart is an example of a papilloma.
- Papilloma, cutaneous
A small tag of skin that may have a stalk (a pedicle) Cutaneous papillomas may appear on the skin almost anywhere although the favorite locales are the eyelids, neck, armpits (axillae), upper chest, and groin. Invariably benign, this tiny tumor of the skin usually causes no symptoms unless repeatedly irritated as, for example, by the […]