Pathogenesis of renal calculi

Area of Science:

• Nephrology
• Urology
• Pathology

Background:

• Kidney stone disease (nephrolithiasis) prevalence is increasing globally.
• Despite advances, the exact cause and progression of kidney stone formation remain incompletely understood.
• Existing knowledge gaps necessitate further investigation into the pathogenesis of kidney stones.

Purpose of the Study:

• To review fundamental concepts of kidney stone formation (calculus formation).
• To explore leading theories on stone pathogenesis.
• To highlight recent evidence implicating Randall's plaque in kidney stone disease.

Main Methods:

• Review of existing literature on kidney stone pathogenesis.
• Analysis of recent data from human surgical anatomy, histopathology, and metabolic factors in kidney stone formers.
• Focus on findings from human papillary and renal cortical biopsies.

Main Results:

• Recent data provide evidence for the role of Randall's plaque in kidney stone pathogenesis.
• Human biopsies reveal distinct stone-forming phenotypes.
• These phenotypes are characterized by unique surgical anatomy, histology, and metabolic profiles.

Conclusions:

• Randall's plaque is a key factor in the pathogenesis of kidney stone disease.
• Individualized stone-forming phenotypes exist, each with specific anatomical, histological, and metabolic features.
• Understanding these phenotypes may lead to more targeted prevention and treatment strategies for kidney stones.