Lesion Formation
Lesion Formation - Related Videos
08:16
Comparative Lesions Analysis Through a Targeted Sequencing Approach
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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.
09:22
Sectioning Mammary Gland Whole Mounts for Lesion Identification
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Cited by 13 •
2017
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.
06:43
Quantitative Analysis and Characterization of Atherosclerotic Lesions in the Murine Aortic Sinus
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Cited by 51 •
2013
We describe procedures to quantify and characterize atherosclerotic lesions in mouse models using precision sectioning of the aortic sinus and ascending aorta combined with histochemical and immunohistochemical analysis.
05:51
A Human Ex Vivo Atherosclerotic Plaque Model to Study Lesion Biology
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Cited by 13 •
2014
Atherosclerosis is a chronic inflammatory process. This manuscript illustrates an easy to use ex vivo model to investigate fresh carotid or coronary artery plaques. The ex vivo model allows for the investigation of potential substances on the inflammatory milieu in human atherosclerotic lesions and results can be analyzed by various methods.
09:26
Preparation and Using Phantom Lesions to Practice Fine Needle Aspiration Biopsies
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Cited by 6 •
2009
Practicing of fine needle aspiration biopsies (FNAB) by trainees is relatively challenging, due to the lack of an easily available, appropriate lesion. Preparation of an AV phantom lesion for practicing the FNAB procedure and mastering proficiency is relatively easy.
FAQs
Two interacting processes can produce the observed tissue change. Microorganisms may damage host cells directly, while the immune response recruits leukocytes and releases inflammatory mediators that modify nearby tissue. Examining both possibilities helps investigators determine whether lesion development primarily reflects microbial injury, immune activity, or the combined effects of infection and inflammation.
Immune activity can limit infection yet also alter surrounding tissue. Leukocyte recruitment and inflammatory mediator release change the local environment, potentially producing tissue abnormalities alongside the response intended to protect the host. This dual role makes lesion patterns useful for studying how effective defense mechanisms may become tissue damaging during disease progression.
Lesion patterns provide observable or microscopic evidence of how disease affects tissue. Their characteristics can be examined alongside pathogen activity and immune mechanisms to connect local abnormalities with disease progression. Although a lesion pattern does not by itself identify every cause, it can support diagnostic assessment and guide investigation of the processes producing tissue damage.
Lesion formation can follow disrupted cellular function as well as direct damage by invading microorganisms. In an infection setting, researchers therefore need to consider whether abnormal tissue reflects pathogen effects, altered host-cell activity, inflammatory responses, or a combination. This distinction helps clarify the relationship between cellular dysfunction, immune mechanisms, and the resulting pattern of disease.
Researchers characterize lesions by examining the visible or microscopic tissue changes associated with infection, inflammation, injury, or altered cellular function. They interpret these patterns in relation to pathogen activity and immune responses, including leukocyte recruitment and inflammatory mediator release. Such characterization creates measurable outcomes for comparing disease progression and assessing experimental interventions.
Lesion patterns can support diagnosis by providing localized evidence of tissue disturbance. Repeated or comparative characterization may also help connect changes in tissue appearance or microscopic structure with disease progression and the mechanisms involved. In immunology and infection research, these observations offer a way to relate local pathology to microbial activity and host responses.
Lesions can serve as measurable outcomes when researchers assess interventions that target microorganisms or modify immune activity. Comparing lesion characteristics across conditions may indicate whether treatment changes pathogen-associated injury, inflammatory tissue effects, or both. This approach is especially informative when the study aims to distinguish reduced infection from reduced immune-mediated tissue damage.
Studying lesion formation links tissue-level abnormalities with the interaction between invading microorganisms and host defenses. It helps researchers examine how direct cellular damage, leukocyte recruitment, and inflammatory mediators shape disease progression. The same framework also clarifies how protective immunity can become harmful and provides a measurable basis for investigating antimicrobial and immunomodulatory strategies.