Necrotic Lesions
Necrotic Lesions - Related Videos
05:31
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2025
This video demonstrates the development of necrotizing enterocolitis disease in a human-derived neonatal enteroid model induced by lipopolysaccharides treatment. This model helps to study intestinal pathophysiology.
03:00
Measuring Drug Binding to Caseum from Tuberculosis Lesions via the Rapid Equilibrium Dialysis Method
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2025
Source: Sarathy, J. P. et al. An In Vitro Caseum Binding Assay that Predicts Drug Penetration in Tuberculosis Lesions. J. Vis. Exp. (2017)This video demonstrates an in vitro assay for measuring drug binding to caseum from tuberculosis lesions using rapid equilibrium dialysis. It outlines the steps for preparing caseum suspensions, performing dialysis, and calculating the unbound drug fraction to predict drug penetration into caseum.
12:17
An In Vitro Caseum Binding Assay that Predicts Drug Penetration in Tuberculosis Lesions
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Cited by 24 •
2017
Here we describe a rapid equilibrium dialysis (RED) method to measure drug binding to caseum from pulmonary tuberculosis lesions and cavities. The protocol is also used with a foamy macrophage-derived matrix that is an effective surrogate to caseum.
09:22
Sectioning Mammary Gland Whole Mounts for Lesion Identification
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Cited by 13 •
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We developed a method to successfully remove, process, section, and stain, for histopathological evaluation, mammary tissue that had originally been fixed on slides as whole mounts. This method may promote the collection and evaluation of mammary gland whole mounts in reproductive and developmental test guideline studies.
08:16
Comparative Lesions Analysis Through a Targeted Sequencing Approach
0 Views •
2019
This article describes a method to identify clonal and subclonal alterations among different specimens from a given patient. Although the experiments described here focus on a specific tumor type, the approach is broadly applicable to other solid tumors.
FAQs
Severe cellular stress can impair energy production, leaving affected cells unable to maintain normal functions. This failure contributes to loss of membrane integrity, cell swelling, and eventual rupture. In a lesion, the extent and distribution of damaged tissue can therefore reflect how strongly the initiating injury disrupted cellular energy balance and how widely that stress affected neighboring cells.
Membrane integrity helps determine whether damaged cells remain contained or release their intracellular contents into surrounding tissue. When membranes fail, released material can trigger inflammation nearby, linking cellular destruction to changes in the local tissue environment. Assessing the lesion and its surrounding response helps investigators interpret both the severity of injury and its biological consequences.
A lesion’s size, location, appearance, and relationship to viable neighboring tissue provide clues about the process responsible for tissue destruction. These features may help distinguish injury, infection, ischemia, or disease-associated damage when interpreted together. Comparing affected and preserved regions is especially useful because the boundary between them can show how destruction is distributed through the tissue.
Cells within a necrotic lesion have undergone irreversible damage, whereas adjacent viable tissue remains preserved enough to provide a comparison region. The contrast can include differences in cellular integrity and the presence of released contents or inflammation around the damaged area. Studying this relationship helps clarify the lesion’s extent and the transition from destroyed to surviving tissue.
Microscopy, imaging, and tissue sampling are the principal approaches identified for examining necrotic lesions. Microscopy can evaluate cellular and tissue features, imaging can show lesion distribution, and sampling allows direct study of affected tissue. Using these approaches to assess size, location, appearance, and neighboring viable regions supports evaluation of the underlying process.
Cause assessment relies on combining the lesion’s observable features rather than treating any single characteristic as conclusive. Investigators can compare size, location, appearance, and the relationship to surrounding viable tissue, then examine the area through microscopy, imaging, or tissue sampling. This integrated assessment can help differentiate patterns associated with injury, infection, ischemia, or disease.
Repeated or comparative examination can show how lesion size, location, appearance, and tissue relationships change over time. Enlargement or altered involvement of neighboring tissue may indicate continuing destruction, while a stable pattern may provide different evidence about the process. In biology and pathology, these observations help connect tissue-level findings with the course of disease.
Necrotic lesions can serve as tissue-level indicators when researchers evaluate whether treatment changes the underlying damage. Microscopy, imaging, or tissue sampling can document lesion extent and its relationship to viable tissue before or after an intervention. Comparing these findings helps determine whether tissue destruction is progressing, remaining localized, or showing another treatment-associated pattern.