Supplementary Material for: Side Effects of Stem Cell Transplant Mimicking Symptoms of Known Amyloidosis

AL amyloidosis can involve the gastrointestinal (GI) tract in a sporadic manner, affecting certain anatomical areas while sparing others. Our patient with AL amyloidosis and confirmed colonic involvement was found to have new odynophagia, GI bleeding, and imaging findings that might suggest progression of her AL amyloidosis. However, negative pathology results from esophageal biopsies suggested the patient’s new ulcerations were a side effect of her autologous stem cell transplant (SCT) and chemotherapy meant to target amyloidosis, as opposed to an effect of amyloid infiltration itself.