**Question:** In minimal change disease following is not seen -

A. Nephrotic range proteinuria (>3.5 grams/day)
B. Progression to end-stage renal disease
C. Hematuria
D. Nephrosclerosis

**Core Concept:**
Minimal change disease (MCD) is a type of primary glomerular disease characterized by a minimal change in the glomerular basement membrane. It primarily affects children but can occur in adults as well. MCD is generally a benign disease, characterized by nephrotic-range proteinuria (>3.5 grams/day) and minimal or absent immune complex deposition. It is typically associated with edema, hypoalbuminemia, hyperlipidemia, and hypercholesterolemia.

**Why the Correct Answer is Right:**
In minimal change disease, the following features are typically not seen:

1. **Nephrotic range proteinuria (>3.5 grams/day):** MCD is characterized by minimal or absent immune complex deposition, which leads to a lack of mesangial cell proliferation and deposition of immune complexes. This results in a low proteinuria level, with most patients having proteinuria less than 3.5 grams per day.
2. **Progression to end-stage renal disease:** MCD is generally a self-limiting disease without significant renal impairment. While some patients may progress to end-stage renal disease (ESRD), this is not a universal feature and the disease usually resolves without causing significant kidney damage.
3. **Hematuria:** Hematuria is not a prominent feature of minimal change disease. It is primarily a disease of the glomerular filtration barrier, and the glomerular basement membrane appears normal on microscopic examination.
4. **Nephrosclerosis:** Nephrosclerosis is a process of renal parenchymal scarring, typically associated with chronic renal disease. In minimal change disease, there is no significant parenchymal scarring or nephrosclerosis.

**Why Each Wrong Option is Incorrect:**

1. **Nephrotic range proteinuria (>3.5 grams/day):** As mentioned earlier, proteinuria is usually low in minimal change disease due to a lack of immune complex deposition.
2. **Progression to end-stage renal disease:** While some patients may progress to ESRD, this is not a universal feature, and MCD typically resolves without causing significant kidney damage.
3. **Hematuria:** Hematuria is not a prominent feature of minimal change disease, as it primarily affects the glomerular filtration barrier, while microscopic examination shows normal glomerular basement membrane.
4. **Nephrosclerosis:** Nephrosclerosis is a process of renal parenchymal scarring, which is not a feature of minimal change disease. MCD typically affects the filtration barrier without causing significant parenchymal scarring or nephrosclerosis.

**Clinical Pearl:**
In minimal change disease, proteinuria is typically low due to a lack of immune complex deposition. The disease primarily affects the filtration barrier without causing significant parenchymal scarring or nephrosclerosis. While some patients may progress to end-stage renal disease, this is not a universal feature. The disease usually resolves without