Also found in: Dictionary, Thesaurus, Legal, Encyclopedia.
a relatively transparent renal cast seen in the urine and composed of proteinaceous material derived from disintegration of cells; seen in patients with renal disease or transiently with exercise, fever, congestive heart failure, and diuretic therapy.
a transparent cast composed of mucoprotein.
hy·a·line cast(hīă-lēn kast)
Relatively transparent renal cast seen in urine; composed of proteinaceous material derived from disintegration of cells; seen in patients with renal disease or transiently with exercise, fever, congestive heart failure, and diuretic therapy.
The most common form of cast found in the urine, transparent, pale, and having homogeneous rounded ends. It may be a benign finding, or may be present in fevers, stress, kidney disease, or unchecked hypertension.illustration
See also: cast
see apoptotic body.
see hyaline cartilage.
see urinary cast.
see hyaline degeneration.
composed of fibrin degradation products these contribute to the formation of microthrombi. Called also shock bodies.
composed of fibrin and cell debris, this membrane lines the alveoli when there has been severe damage to the alveolar epithelium. See also hyaline membrane (3).
hyaline membrane disease
a disorder of newborn animals, most commonly foals, characterized by the formation of a hyalin-like membrane lining the terminal respiratory passages. Neonates with this disease do not secrete adequate quantities of surfactant, which is secreted by type II alveolar epithelial cells, and decreases the surface tension of the fluids lining the alveoli and bronchioles. When the surface tension is kept low, air can pass through the fluids and into the alveoli. If the surface tension is not decreased by adequate supplies of surfactant, the alveoli cannot fill with air and there is partial or complete collapse of the lung (atelectasis). Thus the foal with hyaline membrane disease suffers from respiratory embarrassment with severe dyspnea. See also neonatal maladjustment syndrome.