Background: Currently, COVID-19 is becoming one of the most common causes of viral pneumonia worldwide. In the medical literature, very few case reports describe the association between COVID-19 and the syndrome of inappropriate antidiuretic hormone secretion (SIADH) in kidney transplant patients.
Methods: A 74-year-old immunocompromised man post-kidney transplant presented with nonspecific symptoms consisting of fatigue, malaise, and anorexia.