Abstract: 【Objective】 To explore effect of methyl violet dyeing

Congo red staining and immunohistochemical method on the 38 cases of renal amyloidosis. 【Methods】 38 cases of tissue samples after conventional treatment were respectively stained with methyl violet and Congo red staining and immunohistochemical method

and were analyzed by statistical method. 【Results】 methyl violet dyeing can accurately detect renal amyloidosis

but cannot be parting the type

and need timely observation;Congo red staining can accurately detect renal amyloidosis

and can separate AA type and type AL amyloidosis;Immunohistochemical detection can accurately detect renal amyloidosis

and carries on the classification. 【Conclusion】 All these methods can accurately detect renal amyloidosis

Congo red staining and immunohistochemical can further classification. Combination of Congo red staining and SAA immunohistochemistry can accurately detect renal amyloidosis

avoid misdiagnosis caused by reagent or human operation.