Fig. 4From: Localized primary amyloidosis of the breast: a case report and review of the literatureMicroscopic observations (hematoxylin and eosin [H&E], direct fast scarlet [DFS], Congo red, Congo red after permanganic acid treatment, and amyloid L). H&E staining showed homogenous eosinophilic depositions with surrounding margins of breast parenchyma. No malignancy such as breast carcinoma, lymphoma, or plasma cell myeloma was seen. The deposits were positive to Congo red and DFS staining after permanganic acid treatment. Immunohistochemistry for AA amyloid was negativeBack to article page