Introduction: Amyloid fibrils are polymers of proteins involved in various physiological processes. When there is an accumulation of defective amyloid fibrils, a condition called amyloidosis occurs. This can have several subtypes.Case Report: The authors report a case of a 78-year-old male, independent in his daily life, came to the medical center complaining of aggravating dyspnea in the last months. He has co...