A Comprehensive Overview of Rare Initial Presentation of SIADH in Small Cell Lung Cancer

SIADH a condition where anti-diuretic hormone (ADH) is secreted in the absence of appropriate physiological stimuli. SIADH mostly characterized by hypotonic, euvolemic hyponatremia with urinary hyperosmolarity. SIADH is a well-known paraneoplastic syndrome frequently linked with small-cell lung cancer (SCLC).