A 40 y/o man has a 3 month history of dysphagia with solids. Symptoms occur twice a week, especially when he eats fast. Hard bread and tough meats are particularly bothersome. Denies heartburn or weight loss. Does not smoke or drink and takes no medications. Exam and Labs are nml.
24 y/o man who formerly used injection drugs is found to have a blood urea nitrogen concentration of 24mg/dl, a serum creatinine concentration of 2.5 mg/dL, and a urine protein-to-creatinine ratio of 8. Tests are positive for HIV and negative for Hep b and C. Renal U/S shows kidneys of 11cm on Right and 10.5 on left. Renal biopsy is performed.