renal cast

cast (kast)

1. a positive copy of an object, e.g., a mold of a tube or hollow organ, formed of effused matter such as fat or cellular debris and later extruded from the organ, such as a urinary cast.

2. a positive copy of the tissues of the jaws, made in an impression, and over which denture bases or other restorations may be fabricated.

3. to form an object in a mold.

4. a stiff dressing or casing, usually made of plaster of Paris, used to immobilize body parts.

5. strabismus.

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dental cast  see cast (2).

hanging cast  one applied to the arm in fracture of the shaft of the humerus, suspended by a sling looped around the neck.

renal cast , urinary cast one formed from gelled protein in the renal tubules, molded to the shape of the tubular lumen.

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renal cast

n.

Any of various casts that are formed in the renal tubule and found in the urine and consist of materials such as albumin, cells, and blood.

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renal cast,

a cast formed from gelled protein precipitated in the renal tubules and molded to the tubular lumen. Pieces of these casts break off and are washed out with the urine. Types named for their constituent material include epithelial, granular, hyaline, and waxy casts. In renal disease, casts may be seen containing red or white blood cells. Also called urinary cast.