treated with Nephropathy Abnormality of the Immune System Membranous Nephropathy A type of glomerulonephropathy characterized by histology with thickening of the basement membrane and deposition of immune complexes in the subepithelial space. Suggest update to description in HPO MN Typically seen in adult population; rare in children. Nephrotic syndrome with histologic features specific to membranous nephropathy. Suggest update to description Membranous Glomerulopathy HP:0012578 Idiopathic - may be related to M-type phosplipase A2 receptor antibodies; secondary forms may be related to autoimmune disease, underlying maligancies, drugs or infections. Has been reported in patients with sickle cell disease. Treatment of Precipitating Factors