Tumor Necrosis
Tumor Necrosis - Related Videos
01:16
Necrosis
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2023
Necrosis is considered as an “accidental” or unexpected form of cell death that ends in cell lysis. The first noticeable mention of “necrosis” was in 1859 when Rudolf Virchow used this term to describe advanced tissue breakdown in his compilation titled “Cell Pathology”. Morphological Manifestations of Necrosis Necrotic cells show different types of morphological appearance depending on the type of tissue and infection. In coagulative necrosis, cells become anucleated and die, but their...
02:12
Muscle Necrosis Assay in C. elegans Induced by a Pathogenic Aeromonas Strain
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2026
Source: Chen, Y. et. al., Evaluating Virulence and Pathogenesis of Aeromonas Infection in a Caenorhabditis elegans Model. J. Vis. Exp. (2018)This video demonstrates a muscle necrosis assay in C. elegans (Caenorhabditis elegans) using pathogenic Aeromonas strains. By feeding green fluorescent protein (GFP)-expressing worms on Aeromonas-seeded plates, the assay models bacterial infection and reveals tissue damage through fluorescence imaging. The progressive loss of muscle structure and GFP...
01:16
Cellular Injury IV: Necrosis
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2026
Necrosis is a form of irreversible cell death caused by severe injury such as ischemia, toxins, or trauma. Unlike programmed cell death, it is an uncontrolled, pathological process that typically provokes inflammation in surrounding tissues.Pathophysiologic ChangesNecrosis begins when cells sustain critical damage, leading to swelling of organelles, particularly mitochondria, and rapid ATP depletion. As energy levels decline, membrane ion pumps fail, leading to calcium influx and eventually,...
03:59
Orthotopic Homograft Tumor Transplantation: A Technique to Generate Pancreatic Tumor Mouse Models
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2023
The video explains a stepwise surgical method for orthotopic implantation of a tumor fragment from a cancerous donor to the pancreas of a non-cancerous recipient mice for development of pancreatic cancer. Orthotopically implanted PDAC could recapture the tissue microenvironment of human pancreatic cancers than conventional subcutaneous (SC) models more accurately.
07:55
The Influence of Liver Resection on Intrahepatic Tumor Growth
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Cited by 6 •
2016
A high incidence of tumor recurrence after resection of liver metastases remains an unsolved problem. The illustrated mouse model may be useful to investigate the reasons for such recurrences. It combines a liver resection model with intrahepatic tumor cell injection for the first time.
FAQs
As a tumor enlarges, its demand for oxygen and nutrients can outpace the capacity of nearby blood vessels. The resulting hypoxia, meaning inadequate oxygen availability, creates metabolic stress and can progress to membrane breakdown and cell death. This mechanism links the extent of necrotic tissue to the balance between tumor growth and the blood supply supporting it.
When tumor cells die, they may release inflammatory signals that attract immune cells into the affected region. This response adds a biological consequence beyond loss of viable tissue and can alter the local tumor environment. In medicine, recognizing this connection helps explain why necrotic areas may be accompanied by immune-cell recruitment rather than representing an isolated structural change.
Necrosis can provide prognostic information, but its significance is not uniform across all tumors. Tumor type influences how the finding should be interpreted, while the surrounding clinical context helps indicate whether it reflects disrupted growth, inadequate blood supply, or a response to treatment. Therefore, presence alone should not be treated as a complete prediction of outcome.
Histopathology provides a tissue-based way to assess necrotic areas within a tumor sample. The finding is interpreted alongside the tumor’s type and clinical circumstances rather than in isolation. This assessment can help characterize the lesion and contribute to estimating aggressiveness, making it useful when microscopic examination forms part of the medical evaluation.
Imaging is another clinical approach for assessing tumor necrosis and can complement histopathology. It helps characterize the tumor and may show changes relevant to treatment response, particularly when clinicians monitor a patient after chemotherapy, radiotherapy, or another intervention. Imaging findings still require interpretation in the context of tumor type and the broader clinical picture.
Clinicians interpret necrosis by integrating the finding with clinical context, tumor type, and whether chemotherapy, radiotherapy, or another intervention has occurred. Without that context, dead tissue may reflect either the tumor outgrowing its blood supply or a treatment response. Combining pathology or imaging with treatment history therefore supports a more meaningful interpretation than using necrosis alone.