Add to ORKGDiabetic nephropathy is a common and serious complication in diabetic patients. Renal diseases other than diabetic nephropathy (non-diabetic nephropathy) can occur in diabetic patients with nephrosis. The presence of non-diabetic nephropathy is noted in type 2 diabetes patients, but no data exists for type 1 diabetes. In this report we describe the case of a 15-year-old girl with type 1 diabetes mellitus, who presented with an acute elevation of urinary microalbumin excretion, general edema, and liver enzyme elevation. She had shown microalbuminuria about 3 years earlier, as well as an uncontrolled hemoglobin A1c level, but she had no diabetic retinopathy and neuropathy. A renal biopsy was conducted, and she was diagnosed with primary focal...