USMLE · Question #612
A group of research scientists are studying immunohistochemical stains used for detecting the different types of cell. The stain which is used to detect epithelial cells is:
The correct answer is B. cytokeratin. Cytokeratin is a keratin-containing intermediate filament found in the intracytoplasmic cytoskeleton of epithelial tissue. In the cytoplasm, the keratin filaments form a complex network which extends from the surface of the nucleus to the cell membrane. The cytokeratin stain is…
Question
A group of research scientists are studying immunohistochemical stains used for detecting the different types of cell. The stain which is used to detect epithelial cells is:
Options
- Achromogranin
- Bcytokeratin
- Cdesmin
- Dneurofilaments
- Evimentin
How the community answered
(30 responses)- A3% (1)
- B80% (24)
- C7% (2)
- D10% (3)
Explanation
Cytokeratin is a keratin-containing intermediate filament found in the intracytoplasmic cytoskeleton of epithelial tissue. In the cytoplasm, the keratin filaments form a complex network which extends from the surface of the nucleus to the cell membrane. The cytokeratin stain is used to detect epithelial cells and tumors.
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