<prompt> These skin changes developed during treatment for end-stage renal failure. What is the diagnosis?AmyloidosisNephrogenic fibrosing dermopathySyphilisScleroderma  <response>: Answer B. Nephrogenic fibrosing dermopathyNephrogenic fibrosing dermopathy is characterized by diffuse, cutaneous, hyperpigmented, brawny induration, erythematous or skin-colored plaques with irregular borders. The cause of nephrogenic fibrosing dermopathy is unknown. 