Ascites revealing peritoneal amyloidosis and IgG kappa multiple myeloma: A case report.

AL amyloidosis is a rare systemic disease characterized by the deposition of amyloid protein in various organs, including the kidneys, heart, peripheral nervous system, digestive tract, skin, and muscles. Peritoneal involvement in AL amyloidosis is exceptionally rare. We present a unique case of AL amyloidosis with concurrent cardiac, cutaneous, and peritoneal manifestations. The patient initially presented with ascites and respiratory symptoms. An etiological workup revealed multiple myeloma as the underlying cause. This case highlights the importance of considering AL amyloidosis in the differential diagnosis of peritoneal ascites, providing valuable insights for radiologists in recognizing atypical presentations of this disease.