An Uncommon Face of Sarcoidosis: Acute Kidney Injury with Facial Nerve Palsy

Sarcoidosis is a multisystem inflammatory disorder that most often affects the lungs and lymph nodes. Renal involvement is uncommon and may be related to disordered calcium metabolism or granulomatous interstitial nephritis (GIN), the latter reported in about 1% of native biopsies. We describe a young woman who developed sarcoidosis-related GIN, presenting unusually as dialysis-dependent acute kidney injury in the absence of marked hypercalcemia or pulmonary disease.