Light micrograph of a corpus amylaceous (pleural: corpora amylacea), which is a small body found inside prostate glands. This corpus amylaceous, occupying most of the field of the picture, is round and dark-purple, and has radial cracks. Corpora amylacea are often seen by pathologists trying to diagnose diseases by examining prostate tissue microscopically. The presence of corpora amylacea is completely normal and does not itself indicate any particular disease. Haematoxylin and eosin stained tissue section. Magnification: 200x when printed at 10cm.