Diffuse proliferative glomerulonephritis, in lupus nephritis falls under-: (A) Class II, (B) Class III, (C) Class IV, (D) Class V
Answer is C. According to the WHO, six patterns of mutually-merging renal lesions are seen in lupus nephritis: Class I: Minimal lesions. Class II: Mesangial lupus nephritis. Class III: Focal segmental lupus nephritis. Class IV: Diffuse proliferative lupus nephritis Class V: Membranous lupus nephritis Class VI: Sclerosing lupus nephritis. Ref: HARSH MOHAN TEXTBOOK OF PATHOLOGY 6th ed. pg no: 676