• Cassandra D L Fritz and Elizabeth Blaney.
• Division of Gastroenterology, Washington University in Saint Louis, Saint Louis, Mo.
• Am. J. Med. 2022 Apr 1; 135 Suppl 1: S20S23S20-S23.

AbstractAmyloidosis is a heterogeneous disease that can cause a wide array of nonspecific symptoms when the gastrointestinal (GI) tract is involved, including weight loss, early satiety, change in bowel habits with diarrhea, constipation, or alternating bowel pattern. Endoscopy with biopsy for Congo red staining establishes the diagnosis and fibril subtyping helps to guide targeted treatment options. Light chain amyloidosis is the most frequent subtype found throughout the GI tract. Transthyretin amyloidosis is most likely to be found on rectal biopsy. Management of the symptoms of GI tract involvement with amyloidosis relate to addressing the underlying symptom complex that is produced and generally abstracted from the management of severe forms of functional GI disorders. Attention to improving symptom management and nutrition status can improve quality of life in these patients.Copyright © 2022 Elsevier Inc. All rights reserved.

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