Micrograph of a kidney biopsy stained with a<unk> .<unk> , also<unk> , is a methenamine silver-Periodic acid-Schiff stain used in pathology. It is also referred to as methenamine PAS which is commonly abbreviated MPAS. It stains for basement membrane and is widely used in the investigation of medical kidney diseases. The<unk>  demonstrates the spiked GBM, caused by subepithelial deposits, seen in membranous nephropathy.
Jones' stain
Wayson stain
Feulgen stain
Movat's stain
Bielschowsky stain
Romanowsky stain
Alcian blue stain
Auramine phenol stain