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Updated: Aug 18, 2026

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Performing and Processing FNA of Anterior Fat Pad for Amyloid
Published on: October 30, 2010
Primary amyloidosis with increased plasma carcinoembryonic antigen concentration. A case report
Abstract:
A patient with suspected malignant disease had increased concentration of plasma carcinoembryonic antigen (CEA). Amyloidosis was demonstrated at autopsy. The amyloid fibril composition was characterized by immunohistochemical and immunochemical techniques and proved to be of the lambda light chain (AL) type. CEA was demonstrated in the liver parenchyma by using antihuman CEA antiserum. Increased plasma CEA concentration in a patient with primary amyloidosis has, to our knowledge, not been reported before.
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Amyloid Fibrils
Amyloid fibrils are aggregates of misfolded proteins. Under most circumstances, misfolded proteins are either refolded by chaperone proteins or degraded by the proteasome. However, in the case of a mutation or a disease, these proteins can accumulate to form large clusters and often further assemble to form elongated fibers, called fibrils.
Amyloid deposits were observed as early as 1639 in the liver and the spleen. In 1854, Rudolph Virchow performed iodine staining, normally used to...
Amyloid deposits were observed as early as 1639 in the liver and the spleen. In 1854, Rudolph Virchow performed iodine staining, normally used to...
Amyloid Fibrils
Amyloid fibrils are aggregates of misfolded proteins. Under most circumstances, misfolded proteins are either refolded by chaperone proteins or degraded by the proteasome. However, in the case of a mutation or a disease, these proteins can accumulate to form large clusters and often further assemble to form elongated fibers, called fibrils.
Amyloid deposits were observed as early as 1639 in the liver and the spleen. In 1854, Rudolph Virchow performed iodine staining, normally used to...
Amyloid deposits were observed as early as 1639 in the liver and the spleen. In 1854, Rudolph Virchow performed iodine staining, normally used to...

