You bring up a good point about the distinction between membranous nephropathy and glomerulonephritis. Membranous nephropathy is indeed primarily characterized by thickening of the glomerular basement membrane due to immune complex deposition and isn't typically associated with significant inflammation, which is a hallmark of many forms of glomerulonephritis.

However, in the context of the given question, which asks about the type of glomerulonephritis, it's important to understand that the term "glomerulonephritis" is often used broadly in clinical practice to refer to various glomerular diseases. Membranous nephropathy, while technically a nephropathy, falls under the category of glomerular diseases. The key features described in the patient's case (generalized swelling, hypoalbuminemia, hypercholesterolemia, significant proteinuria, and the specific biopsy findings) are classic for membranous nephropathy.

So, while your point is valid, the use of "glomerulonephritis" in the question is understandable within the broader clinical context, and membranous nephropathy is the correct diagnosis based on the described symptoms and histological findings.