Category: P

Medical procedure to select the strength of lens that corrects the patient’s refractive error and provides 20/20 vision.  

Constriction or narrowing of a vein.  

Hardening of the veins. A rare degenerative condition, of unknown cause, that affects the leg veins of young men. The Vein walls become thickened and feel like cords under the skin. It is not related to arteriosclerosis and needs no treatment.  

An enzyme necessary to break down phenylalanine hydroxylase into tyrosine; lack of this enzyme results in excess phenylalanine in the blood that eventually spills over into the urine.  

Involuntary contraction or spasm of the pharynx.  

Fingers in a spread-out fashion.  

Cells found within the lungs that engulf debris and foreign compounds.  

Multiple lymphoid follicles in a compact space that form the elevations of the mucous membrane of the small intestine.  

Muscle of the anterior surface of the lower leg that extends the foot when contracted.  

Surgical excision of the prostate gland through the perineum.