A patient with solid gynecologic cancer causing lactic acidosis, severe hypercalcemia, and hypoglycemia

Endocrine paraneoplastic syndromes occur in patients with malignant disease and are caused by tumor production of hormones or peptides leading to metabolic derangements. These syndromes are typically detected after cancer diagnosis,1, 2 and physician knowledge about these syndromes is important for patient care.3 Herein, we report an unusual case of paraneoplastic syndrome with three different simultaneously occurring metabolic disturbances in a 45‐year‐old female with a solid gynecologic tumor.