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Related Concept Videos

Urinary Tract Calculi II: Pathophysiology and Clinical Manifestations01:26

Urinary Tract Calculi II: Pathophysiology and Clinical Manifestations

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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...
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Urinary Tract Calculi III: Medical Management01:30

Urinary Tract Calculi III: Medical Management

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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)...
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Urinary Tract Calculi I: Introduction01:28

Urinary Tract Calculi I: Introduction

860
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...
860
Urinary Tract Calculi V: Nursing Management01:28

Urinary Tract Calculi V: Nursing Management

419
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...
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Urinary Tract Calculi VI: Surgical Management01:25

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...
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Imaging Studies III: Computed Tomography01:27

Imaging Studies III: Computed Tomography

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DefinitionComputed Tomography (CT) of the genitourinary (GU) tract is a non-invasive imaging modality that utilizes X-rays and computer processing to generate detailed cross-sectional images of the urinary system, encompassing the kidneys, ureters, bladder, and adjacent structures such as the adrenal glands.PurposeCT scans of the GU tract serve several diagnostic and therapeutic purposes, including:Diagnosis of Urinary Tract Diseases: Detects kidney stones, tumors, cysts, and congenital...
653

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Metanephric adenoma with diffuse calcifications: A case report.

Jingtao Wu1, Qingqiang Zhu1, Wenrong Zhu1

  • 1Department of Medical Imaging, Subei People's Hospital, Medical School of Yangzhou University, Yangzhou, Jiangsu 225001, P.R. China.

Oncology Letters
|December 2, 2015
PubMed
Summary

Atypical metanephric adenoma, a rare kidney tumor, can present with distinct features like defined margins and calcifications. This case highlights its unique presentation and successful surgical management.

Keywords:
atypiadiffuse calcificationsmetanephric adenoma

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Area of Science:

  • Nephrology
  • Oncology
  • Pathology

Background:

  • Metanephric adenoma is a rare, benign renal neoplasm.
  • Distinguishing it from malignant tumors preoperatively can be challenging.
  • Metastasis is exceedingly rare, with only one prior reported case.

Purpose of the Study:

  • To report a case of atypical metanephric adenoma.
  • To describe its unique clinical and pathological findings.
  • To discuss its management and prognosis.

Main Methods:

  • Retrospective analysis of a single surgically confirmed case.
  • Review of clinical data, computed tomography (CT) scans, and histopathological findings.
  • Surgical resection and postoperative follow-up.

Main Results:

  • The atypical metanephric adenoma presented with a clearly defined margin and diffuse calcifications on CT scans.
  • Histopathological examination confirmed the diagnosis.
  • The patient experienced an excellent recovery after surgical resection.

Conclusions:

  • Atypical metanephric adenoma can exhibit features that aid in preoperative diagnosis, such as defined margins and calcifications.
  • Surgical resection is an effective treatment for metanephric adenoma.
  • This case adds to the limited literature on atypical presentations of this rare renal tumor.