A case of paraneoplastic myositis induced rhabdomyolysis due to pancreatic adenocarcinoma.

Rhabdomyolysis is a clinical syndrome characterized by the breakdown of skeletal muscle tissue, leading to the release of myoglobin and creatine kinase (CK) into the bloodstream. The condition clinically presents with myalgia, weakness, and dark urine. It can lead to kidney failure and can be life threatening. Various factors and conditions, including trauma, prolonged immobilization, strenuous exercise, infections, alcohol consumption, medications, and malignancies are potential causes. A rare cause of pancreatic cancer-induced paraneoplastic myositis has been observed. Herein, we present the case of an 87-year-old man who presented with fatigue, weight loss, and invasive pancreatic adenocarcinoma resulting in rhabdomyolysis due to paraneoplastic myositis.