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Title
Human kidney. Amyloidosis, Congo red #312758825
Description
Amyloidosis is caused by abnormal folding of normal soluble proteins leading to clumps of proteins called amyloid deposits that can be demonstrated with the Congo red stain. Light micrograph of amyloidosis in a human kidney medulla showing amyloid stained with Congo red in the wall of small blood vessels. The renal tubuli are free of amyloid