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Congo Red - Example of pathological findings

Last updated on Monday, April 20 2009 by gliageek

Congo Red - Example of pathological findings

Congo Red stain of a temporal artery biopsy form a patient with amyloid angiopathy. Although biopsied to exclude a diagnosis of temporal arteritis, subsequent evaluation revealed a monoclonal gammopathy and multiple myeloma.

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Congo Red (polarized) - Example of pathological findings

Congo Red (polarized) - Example of pathological findings
Congo Red stain of a temporal artery biopsy form a patient with amyloid angiopathy, viewed through a pair of polarizing filters. The bright green is the apple green birefringence that is characteristic of amyloid.

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