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Title | Description | Subject | Collection |
1 |
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Thymus - Epithelial Reticular Cells | This image from the medulla shows many epithelial reticular cells, which have a pale cytoplasm, large nucleus, and prominent nucleolus. These cells form a meshwork which contains developing lymphocytes. One macrophage or PAS cell is visible. PAS stains its phagocytic inclusions bright pink. Note the... | epithelial reticular; Hassall's corpuscle; PAS | UCLA Histology |
2 |
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Thymus - Medulla | In this image of the medulla, identify lymphocytes, PAS cells, and an epithelial reticular cell. UCLA Histology Collection. | medulla; PAS | UCLA Histology |
3 |
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Thyroid | A low magnification of the thyroid gland stained with PAS. The fact that the colloid is PAS+ indicates that the colloid (thyroglobulin) is a glycoprotein. UCLA Histology Collection. | PAS; Thyroid | UCLA Histology |
4 |
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Thymus - Epithelial Reticular Cells | This image from the medulla shows many epithelial reticular cells, which have a pale cytoplasm, large nucleus, and prominent nucleolus. These cells form a meshwork which contains developing lymphocytes. One macrophage or PAS cell is visible. PAS stains its phagocytic inclusions bright pink. Note the... | epithelial reticular; Hassall's corpuscle; PAS | UCLA Histology |
5 |
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Cells / Organelles - Hepatocytes | PAS stains cytoplasmic glycogen granules pink. Identify the nucleus and the nucleolus of a hepatocyte. UCLA Histology Collection. | PAS | UCLA Histology |
6 |
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Thyroid | A higher magnification of the PAS stained thyroid gland. Again, the follicles are filled with PAS positive colloid or thyroglobulin, a glycoprotein which is the stored form of thyroid hormone. Shrinkage artifacts are present within the colloid but not within the epithelial cells. The arrow indicates... | PAS; Thyroid | UCLA Histology |