Podcast
Questions and Answers
Amyloid deposits are always diffuse in nature and exhibit hypervascular characteristics on postcontrast CT/MRI.
Amyloid deposits are always diffuse in nature and exhibit hypervascular characteristics on postcontrast CT/MRI.
False (B)
The presence of calcification on CT scans is indicative of amyloidosis.
The presence of calcification on CT scans is indicative of amyloidosis.
True (A)
On MRI, amyloid deposits are usually characterized by T1 and T2 hyperintense signals.
On MRI, amyloid deposits are usually characterized by T1 and T2 hyperintense signals.
False (B)
Delayed enhancement can be observed in amyloid deposits during imaging studies.
Delayed enhancement can be observed in amyloid deposits during imaging studies.
Focal amyloid deposits are referred to as amyloidoma and may show similar imaging features to diffuse deposits.
Focal amyloid deposits are referred to as amyloidoma and may show similar imaging features to diffuse deposits.
Flashcards
Amyloid Deposition Distribution
Amyloid Deposition Distribution
Amyloid deposits can be localized (amyloidoma) or spread throughout an area.
Amyloid Hypovascularity
Amyloid Hypovascularity
Amyloid deposits often have reduced blood flow compared to surrounding tissue, appearing darker on contrast-enhanced imaging.
Delayed Enhancement in Amyloidosis
Delayed Enhancement in Amyloidosis
Although typically hypovascular, amyloid can sometimes appear brighter on delayed scans, indicating a slower uptake of contrast.
Calcification in Amyloid
Calcification in Amyloid
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Amyloid Signal on MRI
Amyloid Signal on MRI
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Study Notes
Amyloidosis Imaging Features
- Amyloid deposits can be localized (amyloidoma) or widespread (diffuse).
- Amyloid deposits appear dark (hypovascular) on contrast-enhanced CT and MRI scans. Delayed enhancement can sometimes be seen.
- CT scans frequently show calcification, a strong indication of amyloid presence.
- MRI reveals amyloid deposits as appearing dark (hypointense) on both T1 and T2 weighted images.
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Description
This quiz delves into the imaging characteristics of amyloidosis, covering both localized and diffuse forms. Explore how amyloid deposits are represented in CT and MRI scans, including their appearance and associated indicators such as calcification and delayed enhancement. Test your knowledge on the visual features that help in diagnosing this condition.
