General pathological anatomy

Fig. 87. Granular dystrophy of the epithelium of renal tubules (micropreparation) (macroscopically, ‘dull or cloudy swelling’). Epithelial cells, mainly proximal tubules (1), are enlarged, swollen, and contain many small granules, the formation of which is the result of ultrastructural disorders like hyperplasia and swelling of cytoplasmic organelles. 2, glomerulus. Hematoxylin and eosin staining

Fig. 88. Fatty degeneration of the liver (macropreparation). Known as ‘goose liver’

Fig. 89. Fatty degeneration of the liver (micropreparation). The cytoplasm of hepatocytes contains large and small orange-red drops of fat (1) pushing the cellular nuclei to the periphery. The central sections of the lobules (2) are unchanged. Sudan III staining

Fig. 90. Fatty degeneration of the kidney (macropreparation)

Fig. 91. Fatty degeneration of the kidney (micropreparation). Fat is contained in the epithelium of proximal and distal tubules (1), as well as (in a small amount) in the stroma of the organ (2). Sudan III staining

Fig. 92. Fatty degeneration of the myocardium (macropreparation). Known as ‘tiger heart’

Fig. 93. Fatty degeneration of the myocardium (micropreparation). Sudan III staining