A Rare Cause of Hyperkalemia: Adrenal Insufficiency Due to Bilateral Adrenal Lymphoma

A 64-year-old female presented to the emergency department with complaints of fatigue, diarrhea, dizziness, and fever. Initial evaluation revealed hyperkalemia and primary adrenal insufficiency. Computed tomography of the abdomen revealed a bilateral adrenal mass. Ultrasonography-guided biopsy of the mass showed bilateral primary adrenal lymphoma, which is a rare condition, and its clinical findings differ from those other lymphomas, thereby resulting in a delay in the diagnosis and leading to adverse prognosis for the patient. Here we present a typical case of bilateral primary adrenal lymphoma presenting with hyperkalemia due to adrenal insufficiency.