This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Medicine
[{'content': 'A 60-year-old woman presents with generalized edema, skin ulceration and hypeension. Urine examination shows subnephrotic proteinuria \nSelect and explain. \nA. Post-streptococcal Glomerulonephritis, B. Essential Mixed Cryoglobulinemia, C. Membranoproliferative Glomerulonephritis (MPGN), D. Focal SegmentalGlomerulosclerosis (FSGS)', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Answer is B > C (Essential mixed cryoglobulinemia): The presence of skin ulceration on clinical examination in a female patient around the 6th decade ors a diagnosis of Essential Mixed Cryoglobulinemia over MPGN. Neveheless if Essential Mixed Cryoglobulinemia were not amongst the options MPGN would be the single best answer of choice. Membranoproliferative glomerulonephritis is a responsible for 80% of all renal lesions in essential mixed cryoglobulinemia.', 'role': 'assistant'}]