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Urinary Tract Calculi II: Pathophysiology and Clinical Manifestations

Urinary Tract Calculi II: Pathophysiology and Clinical Manifestations

Renal calculi, commonly termed kidney stones, are crystalline solid masses that form in the kidneys but can occur at any point within the urinary system, encompassing the kidneys, ureters, bladder, and urethra.The pathophysiology of renal stones involves several key factors: supersaturation of the urine with stone-forming constituents, changes in urine pH, a decrease in urine volume, and the presence of substances that promote or inhibit stone formation.Supersaturation of Urine: This is the...

Urinary Tract Calculi I: Introduction

Urinary Tract Calculi I: Introduction

Renal calculi, or kidney stones, are solid deposits of minerals and salts formed inside the kidneys. In medical terminology, "calculus" refers to the stone itself, while "lithiasis" describes the process of stone formation. Depending on their location within the urinary system, these stones may be classified as either urolithiasis, when situated within the urinary tract, or nephrolithiasis, when located within the kidneys. Each term signifies the specific impact of the stone.Predisposition...

Urinary Tract Calculi III: Medical Management

Urinary Tract Calculi III: Medical Management

The diagnosis of renal calculi involves several imaging techniques, including non-contrast CT scans and ultrasound. These methods help visualize kidney stones, assess their size and location, and detect possible obstructions. Additionally, Measuring urine pH is useful for diagnosing specific stone types, such as struvite (alkaline pH) and uric acid stones (acidic pH). Cystine stones are primarily linked to cystinuria, a genetic condition. A urinalysis helps detect blood in the urine (hematuria)...

Urinary Tract Calculi V: Nursing Management

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AssessmentSubjective Data: Obtain a detailed health history, including any recent or chronic urinary tract infections, periods of immobilization, previous episodes of renal calculi, and medical conditions such as gout, benign prostatic hyperplasia, or hyperparathyroidism. Review the medication history for drugs that may influence stone formation, including allopurinol, analgesics, loop diuretics, or thiazide diuretics. Document the use of long-term indwelling catheters and any past surgical...

Urinary Tract Calculi VI: Surgical Management

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Procedures for Kidney StonesMedical intervention is necessary when kidney stones or renal calculi are too large to pass spontaneously (typically greater than 5 millimeters) when stones are accompanied by symptomatic infection (such as fever or pyelonephritis), when they impair kidney function, or when they cause persistent symptoms like severe pain, nausea, or urinary retention. Additionally, patients with only one kidney or those who cannot be treated with medical management also require...

Urinary Tract Infection I: Introduction

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Urinary tract infections (UTIs) impact various parts of the urinary system, including the kidneys, ureters, bladder, and urethra. These infections are generally bacterial, with Escherichia coli being the most common causative agent, often originating from the gastrointestinal tract. However, other bacteria, such as Staphylococcus saprophyticus, Klebsiella pneumoniae, and Proteus mirabilis, are also known to cause UTIs. The type, location, and underlying complexity of the UTI guide both...

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Related Experiment Video

Updated: May 10, 2026

Technical Modification of the Terminal Ureter During Total Transperitoneal Laparoscopic Nephroureterectomy for Upper Urinary Tract Urothelial Carcinoma

Technical Modification of the Terminal Ureter During Total Transperitoneal Laparoscopic Nephroureterectomy for Upper Urinary Tract Urothelial Carcinoma

Published on: November 22, 2019

Genitourinary tuberculosis masquerading as a ureteral calculus.

Nathan Wong¹, Nathan A Hoag, Edward C Jones

¹University of British Columbia, Department of Urologic Sciences, Gordon & Leslie Diamond Health Care Centre, Vancouver, BC;

Canadian Urological Association Journal = Journal De L'Association Des Urologues Du Canada

|June 15, 2013

Summary

Genitourinary tuberculosis is a rare condition in North America, often presenting as a ureteral stone. Early suspicion and diagnosis are crucial for effective management, potentially involving medical treatment and surgery.

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Technical Modification of the Terminal Ureter During Total Transperitoneal Laparoscopic Nephroureterectomy for Upper Urinary Tract Urothelial Carcinoma

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Published on: November 22, 2019

Point-of-Care Kidney and Genitourinary Ultrasound in Adults: Image Acquisition

Point-of-Care Kidney and Genitourinary Ultrasound in Adults: Image Acquisition

Published on: June 21, 2024

Area of Science:

Urology
Infectious Diseases
Nephrology

Background:

Genitourinary tuberculosis (GUTB) is a significant extrapulmonary manifestation of tuberculosis.
While common globally, GUTB is infrequently diagnosed in North America.
This underscores a diagnostic challenge in regions with lower prevalence.

Purpose of the Study:

To report a case of genitourinary tuberculosis presenting atypically.
To emphasize the importance of considering GUTB in differential diagnoses.
To highlight diagnostic and management considerations for this rare condition.

Main Methods:

Case report of a 37-year-old male patient.
Initial presentation suggestive of ureteral calculi.
Diagnostic workup including imaging and further investigations.
Treatment involved medical management followed by surgical intervention (nephrectomy).

Main Results:

Imaging suggested a ureteral stone, leading to planned extracorporeal shock wave lithotripsy.
Subsequent investigations confirmed genitourinary tuberculosis.
The patient received medical therapy and ultimately underwent nephrectomy.
Successful management of the condition was achieved.

Conclusions:

Genitourinary tuberculosis can mimic other urological conditions like ureteral stones.
A high index of clinical suspicion is vital for diagnosing GUTB, especially in non-endemic areas.
Multidisciplinary management, including medical and surgical approaches, may be required.