44yrs old male with systemic lymhadenopathy and renal failure (under dialysis). Renal biopsy unsatisfactory: with signs of interstitial nephritis and oxalate crystals.
HISTO: INGUINAL Lymph node with granulomatous "sarcoid" type granulomas woth crystaline inclussions.
PROPOSED VERSIONS: 1. Sarcoidosis (clinically not veryfied). 2. Foreign body granulomatous lymphadenitis: intravenous injections? Other materials?