膜增生性肾小球肾炎。根据病理结果把原发性膜增生性肾小球肾炎分为两型：I型和II型。如图所见，肾小球细胞增多，主要为系膜细胞。
This is membranoproliferative glomerulonephritis (MPGN). Those that are idiopathic are divided into types I and II by pathologic findings. As seen here, the glomerulus has increased overall cellularity, mainly mesangial.
