hyaline cast


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hy·a·line cast

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.

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.
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HYALINE CAST: (Orig. mag. ×400)

hyaline cast

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
References in periodicals archive ?
The instrument is capable of differentiating erythrocytes, leukocytes, hyaline casts, unclassified casts, epithelial cells, bacteria, yeast, crystals, mucus, sperm, and amorphous substances.
Approximately 500 images per sample are collected as the software classifies particles into categories including RBC, WBC, WBC clumps, hyaline casts, pathological casts, squamous epithelial cells, non-squamous epithelial cells, bacteria, yeast, crystals, mucus, and sperm.
No increase from the background value of 63% (procedure 5) was seen in preservation of hyaline casts by any procedure.
In visual microscopy, most of the hyaline casts were preserved only partially despite the various preservation procedures (Table 3).
The new system analyzes 4 mL of urine in an automated mode and 1 mL of urine in a manual mode, and aspirates 1,200 uL (automated mode) and 800 uL (manual mode) for microscopic scrutiny, using two channels, one for bacteria detection and one for the enumeration of RBC, WBC, epithelial cells, hyaline casts, and the flagging parameters.
In addition, it is difficult to obtain adequate brightfield photomicrographs of urine sediment structures that have low contrast, such as hyaline casts and bacteria.
Of the remaining 3%, positive sediment findings of hyaline casts, a rare granular cast, bacteria, or a few PMNs (polymorphonuclear leukocytes) were found with negative reagent-strip results.
Urinalysis was remarkable for occasional squamous epithelial cells and hyaline casts, a glucose >2.5 g/L, and 6.4 g protein/24 h, with a volume of 1.5 L (reference interval, <200 mg/24 h).