Category: P

A tiny blister on the cornea or conjunctiva. Any small blister. A hypersensitivity reaction of the conjunctiva. At the turn of the century the most common cause was tuberculosis; nowadays it is most commonly due to hypersensitivity to staphylococci.  

A small blister caused by a burn. A small pinkish-yellow nodule surrounded by a zone of dilated blood vessels that occurs in the conjunctiva or in the cornea. It develops into a small ulcer that heals without trace in the conjunctiva but produces some residual scarring in the cornea. Phlyctenae, which are prone to recur,…

To make a cut in a person’s vein to take blood for testing.  

A blood clot in a deep vein in the legs or pelvis, which can easily detach and form an embolus in a lung. Abnormal condition marked by the formation of a clot within a vein without prior inflammation of the wall of the vein; it is associated with prolonged bed rest, surgery, pregnancy, and other…

A stone which forms in a vein as a result of an old thrombus becoming calcified. A stone-like structure, usually found incidentally on abdominal X-ray, that results from deposition of calcium in a venous blood clot. It appears as a small round white opacity in the pelvic region. It does not produce symptoms and requires…

An X-ray examination of a vein using a radio-opaque dye so that the vein will show up on the film. The study of the veins, particularly by means of X-rays after the veins have been injected with a radio-opaque substance. An infrequently used term for venography. Capturing X-ray images of veins after injecting them with…

An X-ray picture of a vein or system of veins. An infrequently used term for venogram.  

The surgical removal of a vein or part of a vein. Surgical removal of all or part of a vein, sometimes done to treat severe varicose veins. The surgical removal of a vein (or part of a vein), sometimes performed for the treatment of varicose veins in the legs (varicectomy). Surgical removal of a vein…

A groove in the centre of the top lip. A drug believed to stimulate sexual desire. Vertical groove in the skin of the upper lipphimosis [fih-MOH-sis] tightened foreskin. The median groove on the external surface of the upper lip.  

A small medicine bottle.