Endocrine Abstracts

Background: Hypokalemia can be caused by decreased intake of potassium or by excessive loss of potassium in the urine or through the gastrointestinal tract. Severe and life-threatening hypokalemia is defined by levels below 2.5 mEq/l and can be associated with muscle weakness, cramping, headaches, palpitations, polydipsia and polyuria. Periodic paralysis is a very rare presentation in Caucasians.Case presentation: A 50-year-old Caucasian man, without pre...

Background: Pheochromocytomas and paragangliomas (PPGLs) are rare neuroendocrine tumors characterized by a high degree of variability and unpredictability. Coexistence of PPGLs and adrenocortical adenomas is an uncommon occurrence that can further complicate the clinical course. Objective: We describe the diagnostic and management challenges of a patient with a history of surgically removed pheochromocytoma, presenting with symptoms of catecholamine exce...