Fig. 3From: Presacral malakoplakia presenting as foot drop: a case reportHistological examination of the soft tissue mass including a hematoxylin and eosin staining demonstrating fat necrosis plus the presence of histiocytes and giant cells, b periodic acid-Schiff staining demonstrating well demarcated “globules,” c Perls Prussian Blue staining, demonstrating that these globules contain iron, and d von Kossa stain, consistent with the globules containing calciumBack to article page