“…Our goal is to review the differential diagnosis of inflammatory polyarthritis before specifically discussing the diagnosis, pathophysiology, and treatment of CP. Carcinomatous polyarthritis has been reported with a variety of solid tumors including lung, gastric, colon, breast, ovarian, laryngeal, and pancreatic (Table 1) 3-5, [7][8][9][10][11] . The exact prevalence is unknown, but it is thought to be rare 4,12 .…”