Histological sections of pancreas reveal a relatively homogeneous image of an intensely stained tissue. The blue/violet color provided by hematoxylin predominates and is due to the high content of ribonucleic acid present in the cytoplasm of exocrine secretion cells, which constitute the vast majority of the organ.
The tissue of the pancreas parenchyma is quite compact and its divisions into lobes are very delicate and not always noticeable – highlighted in yellow.
The tissue of the exocrine pancreas is interrupted by spherical or ovoid structures of different sizes and less intense color. They are small endocrine secretion glands, called islets of Langerhans – highlighted in green.
Remember the concepts of parenchyma and stroma? – see their definition in the MOL Glossary. Click on GLOSSARYGlossary in the Main menu.
Click to remember the structure of the islets of Langerhans.
Pancreas. Staining: hematoxylin and eosin. Small magnification.
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