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Related Concept Videos

Radical Reactivity: Nucleophilic Radicals01:16

Radical Reactivity: Nucleophilic Radicals

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Radicals adjacent to electron-donating groups are called nucleophilic radicals. These radicals readily react with electrophilic alkenes. The SOMO–LUMO interactions are the driving force for the reaction, where the high-energy SOMO of the electron-rich, nucleophilic radicals interacts with the low-energy LUMO of the electron-deficient, electrophilic alkenes. Such SOMO–LUMO interactions are the basis of reactive radical traps, affecting the selectivity in radical reactions. For...
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Radical Reactivity: Electrophilic Radicals01:02

Radical Reactivity: Electrophilic Radicals

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Radicals adjacent to electron‐withdrawing groups are called electrophilic radicals. These radicals readily react with nucleophilic alkenes. For example, the malonate radical, in which the radical center is flanked by two electron‐withdrawing groups, reacts readily with butyl vinyl ether, which consists of an electron‐donating oxygen substituent. The reaction between electrophilic malonate radical and nucleophilic vinyl ether is favored because the radical has a...
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Radical Autoxidation01:20

Radical Autoxidation

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The oxidation of an organic compound in the presence of air or oxygen is called autoxidation. For example, cumene reacts with oxygen to form hydroperoxide. Autoxidation involves initiation, propagation, and termination steps. Many organic compounds are susceptible to autoxidation—especially ethers in the presence of oxygen, which form hydroperoxides. Even though this reaction is slow, old ether bottles contain small amounts of peroxide, which leads to laboratory explosions during ether...
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Factors Affecting Renal Clearance: Renal Impairment01:17

Factors Affecting Renal Clearance: Renal Impairment

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Renal dysfunction significantly impairs the renal clearance of drugs, leading to potential complications in drug therapy. Renal failure, which can be caused by various factors, poses a significant challenge in the elimination of drugs from the body.
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Renal Corpuscle01:20

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The glomerulus and Bowman's capsule are two essential components of the nephron, which is the functional unit of the kidney. These microscopic structures play a critical role in the process of blood filtration to produce urine.
Glomerulus: Structure and Function
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Renal Clearance

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The glomerular filtration rate (GFR) is a critical marker of kidney function, reflecting the efficiency of filtration by the glomeruli. Renal clearance of specific substances, such as inulin or creatinine, is commonly used to measure GFR.
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Open Radical Nephrectomy for Suspected Renal Malignancy-Tips and Tricks.

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  • 1University of Kentucky, Department of Urology, Lexington, KY.

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A pediatric patient with a suspected malignant cystic renal mass underwent successful open radical nephrectomy. This surgical approach is crucial for managing pediatric renal masses.

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Area of Science:

  • Pediatric Surgery
  • Urologic Oncology
  • Pediatric Nephrology

Background:

  • Cystic renal masses in children can be challenging to diagnose and manage.
  • Early detection and surgical intervention are critical for favorable outcomes.
  • A family history of nephrectomy highlights potential genetic predispositions.

Observation:

  • A 22-month-old female presented with an abdominal mass.
  • Imaging revealed a large cystic renal mass suspicious for malignancy.
  • The patient had no syndromic features.

Findings:

  • Open radical nephrectomy with regional lymph node dissection was performed.
  • The final pathology confirmed a cystic nephroma with benign lymph nodes.
  • The patient experienced an uncomplicated recovery and was discharged within 3 days.

Implications:

  • Open radical nephrectomy is a viable and effective surgical strategy for pediatric cystic renal masses.
  • This case underscores the importance of timely surgical management in pediatric oncology.
  • Further research into the long-term outcomes of cystic nephroma in children is warranted.