Omeprazole-induced acute interstitial nephritis

Omeprazole is a proton pump inhibitor widely used for the treatment of peptic ulcer disease. We report a patient presenting nonoliguric acute renal failure following omeprazole treatment. Both eosinophilia and eosinophiluria were observed, and the patient was diagnosed as having drug-induced acute interstitial nephritis. Renal failure spontaneously resolved when omeprazole was discontinued.

Membranous nephropathy associated with giant lymph node hyperplasia. A case report with histological and ultrastructural studies

A young woman presented with nephrotic syndrome due to membranous nephropathy and a localized form of giant lymph node hyperplasia (Castleman's disease) occurring as a large intra-abdominal mass. Five months after surgical removal of the mass, only mild proteinuria persisted. Twenty months later a second kidney biopsy showed a near-normal morphology. Six years later the patient was free of symptoms and had normal urinalysis. Reviewing the pertinent literature, it seems to be the first case of a biopsy-proven cure of membranous nephropathy in a patient with membranous nephropathy and Castleman's disease.