Podcast
Questions and Answers
What is the characteristic staining property of amyloid when iodine and dilute sulfuric acid are added?
What is the characteristic staining property of amyloid when iodine and dilute sulfuric acid are added?
- It does not react with iodine but turns violet on addition of dilute sulfuric acid
- It stains brown with iodine and remains brown on addition of dilute sulfuric acid
- It stains violet with iodine and turns brown on addition of dilute sulfuric acid
- It stains brown with iodine and turns violet on addition of dilute sulfuric acid (correct)
Under light microscopy with H&E staining, how does amyloid appear?
Under light microscopy with H&E staining, how does amyloid appear?
- Extracellular, granular, and basophilic material
- Extracellular, homogeneous, structureless, and eosinophilic hyaline material (correct)
- Intracellular, homogeneous, eosinophilic, and granular material
- Intracellular, heterogeneous, structured, and basophilic material
What color does amyloid stain with Congo red staining?
What color does amyloid stain with Congo red staining?
- It stains blue with Congo red staining
- It stains positive with Congo red staining (correct)
- It stains green with Congo red staining
- It does not react with Congo red staining
What color does amyloid show under polarising microscopy when stained with Congo red?
What color does amyloid show under polarising microscopy when stained with Congo red?
How is the nomenclature of different forms of amyloid done?
How is the nomenclature of different forms of amyloid done?
Flashcards
Amyloid staining with iodine and acid
Amyloid staining with iodine and acid
Amyloid stains brown with iodine, turns violet with sulfuric acid.
Amyloid H&E staining appearance
Amyloid H&E staining appearance
Amyloid appears as extracellular, homogeneous, structureless, and eosinophilic hyaline material under H&E light microscopy.
Amyloid and Congo red staining
Amyloid and Congo red staining
Amyloid stains positive with Congo red.
Amyloid Congo red polarising microscopy
Amyloid Congo red polarising microscopy
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Amyloid nomenclature
Amyloid nomenclature
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Study Notes
Amyloid Characteristics
- Amyloid exhibits a characteristic staining property when iodine and dilute sulfuric acid are added.
- Under light microscopy with H&E staining, amyloid appears as an amorphous, eosinophilic material.
- Amyloid stains positive with Congo red, appearing red or pinkish in color.
- When viewed under polarizing microscopy with Congo red staining, amyloid shows an apple-green birefringence.
- The nomenclature of different forms of amyloid is done by appending the abbreviation "A" to the name of the fibril protein, for example, AL (amyloid light chain) or AA (amyloid A).
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Description
Test your knowledge of amyloidosis with this quiz! Explore the characteristics, diagnosis, and treatment of this group of diseases characterized by the deposition of amyloid.
