Mass Spectrometry Takes on Amyloid

New guidelines target false negatives, Congo red variability, and the growing role of mass spectrometry in amyloid typing

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The College of American Pathologists has introduced guidelines to standardize amyloidosis diagnostics and improve detection accuracy.
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Mass spectrometry-based proteomics is emerging as the gold standard for amyloid typing, surpassing traditional staining methods.
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Fat pad fine-needle aspiration is a rapid, minimally invasive test for systemic amyloidosis but has variable sensitivity based on amyloid type.
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False-negative results in amyloid detection can arise from technical factors, including tissue section thickness and staining quality.
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Immunohistochemistry for amyloid typing often yields inconclusive results, making mass spectrometry a more reliable alternative.

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