UNIT 1 Special Pathology: Pathological changes in disease conditions of selected systems Glomerulonephritis – Pathological Changes Glomerulonephritis refers to a group of kidney diseases that cause inflammation of the glomeruli, the tiny filtering units in the kidneys. The pathological changes vary depending on whether the condition is acute, chronic, or rapidly progressive, but some common mechanisms underlie all types. 🔬 Pathophysiological Mechanisms: 🩸 Clinical Correlation: 🧪 Histological Findings: Pyelonephritis –