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Subcutaneous aluminium granuloma. (A) Dense, deep dermal and subcutaneous nodular infiltrate surrounding areas of necrosis (original magnification ×80). (B) Mixed infiltrate of lymphocytes, histiocytes, and eosinophils (original magnification ×250). (C) Histiocytes containing violaceous granular within their cytoplasm (original magnification ×400). (D) The granules stain positive with aluminon staining (Morin, (original magnification ×200)), which reveals the existence of aluminium.
