**Core Concept**
Hematuria with dysmorphic red blood cells (RBCs) is a clinical finding that suggests glomerular damage or disease. This occurs when the glomeruli, the filtering units of the kidneys, are affected, leading to the presence of abnormal RBCs in the urine.

**Why the Correct Answer is Right**
Dysmorphic RBCs are typically seen in conditions that affect the glomeruli, such as glomerulonephritis, minimal change disease, and focal segmental glomerulosclerosis. In these conditions, the glomeruli are damaged, leading to the presence of abnormal RBCs in the urine. The dysmorphic shape of the RBCs is due to the abnormal glomerular filtration process, which causes the RBCs to be subjected to increased pressure and shear forces, leading to their deformation.

**Why Each Wrong Option is Incorrect**
**Option A:** This option is incorrect because dysmorphic RBCs are not typically seen in conditions that affect the renal pelvis or ureters, such as kidney stones or tumors.
**Option B:** This option is incorrect because dysmorphic RBCs are not typically seen in conditions that affect the bladder, such as interstitial cystitis or bladder tumors.
**Option C:** This option is incorrect because dysmorphic RBCs are not typically seen in conditions that affect the prostate gland, such as benign prostatic hyperplasia or prostatitis.

**Clinical Pearl / High-Yield Fact**
When evaluating a patient with hematuria, it is essential to examine the morphology of the RBCs to determine the underlying cause. Dysmorphic RBCs are a key finding in conditions that affect the glomeruli, and their presence can help guide further diagnostic testing and treatment.

**Correct Answer: D. Glomerulonephritis**