|Values are valid only on day of printing.|
Congo red may selectively bind to amyloid.
Abnormal deposition of amyloid in various organs may cause dysfunction of the organs.
Congo red stain is helpful in the identification of abnormal amyloid deposition in clinical specimens.
Demonstration of amyoid deposits in tissues, body fluids, or subcutaneous fat aspirations. Aids in the diagnosis of all forms of amyloidosis.
Positive staining is indicated by apple-green birefringence utilizing a polarized microscope.
The laboratory will provide an interpretive report.
Interpretation of stain will be contingent on fixation techniques of tissue.
An interpretive report will be provided.
Puchtler H, Sweat F, Levine M: On the binding of Congo red by amyloid. J Histochem Cytochem 10:355-363, 1962