HYPERCALCEMIA REVEALING ISOLATED RENAL SARCOIDOSIS

Renal involvement in sarcoidosis is rare and is most often a consequence of calcium metabolism disorders or interstitial granulomatous involvement, while glomerular involvement remains exceptional.We report the case of a 56-year-old patient admitted for unexplained renal failure, associated with hypercalcemia, leukocyturia, and minimal proteinuria. A renal biopsy revealed granulomatous interstitial nephritis without caseous necrosis, along with focal areas of mild tubular necrosis. No involvement of other organs was observed. The patient was treated with corticosteroid therapy and symptomatic management of hypercalcemia, leading to a favorable outcome.