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A case of immunoglobulin A nephropathy (IgAN) complicating a 10-year history of biopsy-proven Crohn's disease in a 31-year-old man is described. The patient presented with mild proteinuria and impaired renal function in the setting of an exacerbation of Crohn's disease. Renal biopsy showed IgAN. The patient responded to steroid treatment with clinical remission of the bowel disease and improvement of renal function, while proteinuria remained unchanged. IgA glomerulonephritis is rarely associated with Crohn's disease with only a few previously described cases. We briefly review these cases together with an overview of potential pathophysiological connections between these two diseases.

Epidermolysis bullosa acquisita (EBA) is a rare autoimmune bullous disorder that is often difficult to treat. Few cases have been reported and therapy consists mainly of combinations of systemic steroids, immunosuppressants and, recently, administration of intravenous human immunoglobulin (IVIg). We describe a case of EBA in which our therapeutic choices were limited due to the patient's poor general condition, including extensive infection of the lesions and a history of pulmonary tuberculosis. The patient was treated with IVIg at a dose of 400 mg/kg per day for 5 consecutive days every 4 weeks. The treatment was well tolerated and the results were satisfactory. It seems that IVIg, due to its possible immunomodulatory mode of action, can be an efficacious therapeutic agent in this rare autoimmune disease.

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