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Related Concept Videos

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.
One condition associated with renal failure is uremia. Uremia is characterized by impaired glomerular filtration and fluid accumulation in the body. This condition hinders the renal clearance of drugs, resulting in drug accumulation and potential...
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Renal Corpuscle01:20

Renal Corpuscle

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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
The glomerulus is a tiny, intricate network of capillaries located at the beginning of the nephron. It's enveloped by the Bowman's capsule and receives its blood supply from an afferent arteriole, which divides into numerous...
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Renal Clearance01:23

Renal Clearance

2.6K
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.
Renal clearance refers to the volume of plasma cleared of a specific substance, such as creatinine, per unit of time. To measure clearance, urine samples are collected over a 24-hour period during each bladder voiding, followed by a single blood sample at the...
2.6K
Renal Drug Clearance: Comparison Between Renal Excretion Methods01:08

Renal Drug Clearance: Comparison Between Renal Excretion Methods

599
Renal clearance is a critical parameter encompassing kidney filtration, secretion, and reabsorption processes. It is calculated using a specific equation to determine the rate at which the kidneys clear a drug.
Renal clearance is often associated with the renal glomerular filtration rate (GFR), which represents the rate at which plasma is filtered through the glomeruli in the kidney. When drug reabsorption is minimal and there is no active secretion, renal clearance is closely related to the...
599
Renal Tubule and Collecting Duct01:24

Renal Tubule and Collecting Duct

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The renal tubule is divided into three parts: the proximal convoluted tubule (PCT), the Loop of Henle (LOH), and the distal convoluted tubule (DCT).
Proximal Convoluted Tubule (PCT):
The PCT is the initial segment of the renal tubule, extending from the Bowman's capsule that encloses the glomerulus. Its convoluted structure and microvilli-lined cells increase the surface area for reabsorption. The PCT reabsorbs glucose, amino acids, sodium, and water from the filtrate, ensuring essential...
3.4K
Renal Failure: Dose Adjustments01:11

Renal Failure: Dose Adjustments

459
In patients with renal impairment, drugs undergo significant changes in their pharmacokinetics, which require dosage adjustments to ensure safe and effective therapy.
Reduced renal clearance and elimination rate are common outcomes of renal impairment. These alterations lead to a prolonged elimination half-life and an altered apparent volume of distribution for drugs. As a result, dosage adjustments are typically necessary to maintain optimal drug levels in the body.
However, dosage adjustments...
459

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Related Experiment Video

Updated: Jan 28, 2026

Modeling Spontaneous Metastatic Renal Cell Carcinoma mRCC in Mice Following Nephrectomy
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Renal Medullary Carcinoma.

Alexis Elliott1, Evelyn Bruner1

  • 1From the Department of Pathology and Laboratory Medicine, Medical University of South Carolina, Charleston.

Archives of Pathology & Laboratory Medicine
|March 12, 2019
PubMed
Summary

Renal medullary carcinoma (RMC) primarily impacts young African Americans with sickle cell trait. This aggressive cancer often presents at advanced stages, leading to poor survival rates despite treatment.

Area of Science:

  • Oncology
  • Nephrology
  • Genetics

Background:

  • Renal medullary carcinoma (RMC) is a rare and aggressive kidney cancer.
  • It is strongly associated with sickle cell trait, often termed the seventh sickle cell nephropathy.
  • Its occurrence in individuals without hemoglobinopathies remains a subject of debate.

Purpose of the Study:

  • To describe the key characteristics of renal medullary carcinoma.
  • To highlight the typical patient demographic and clinical presentation.
  • To discuss the pathological features and differential diagnoses.

Main Methods:

  • Review of existing literature and case studies on renal medullary carcinoma.
  • Analysis of clinical, pathological, and survival data.

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A Syngeneic Mouse Model of Metastatic Renal Cell Carcinoma for Quantitative and Longitudinal Assessment of Preclinical Therapies
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  • Comparison with other renal tumors in the differential diagnosis.

    • Main Results:

    • RMC predominantly affects young males of African or Mediterranean descent.
    • Common symptoms include hematuria and flank pain, with most patients presenting with metastatic disease.
    • Pathological findings include a medullary mass with hemorrhage, necrosis, a cribriform pattern, desmoplasia, and inflammatory infiltrate.

    Conclusions:

    • Renal medullary carcinoma is an aggressive malignancy with a poor prognosis, often diagnosed at advanced stages.
    • The characteristic histopathological features aid in its diagnosis, distinguishing it from other renal tumors.
    • While treatment options are limited, isolated cases of prolonged survival offer insights for future research.