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The stomach comprises several layers that work together to facilitate digestion and protect the organ. The outermost layer is called the serosa, which provides support and protection to the stomach. The muscularis externa layer is responsible for the mechanical breakdown of food by contracting and moving the stomach. The submucosa layer, located beneath the muscularis externa, contains connective tissue, blood vessels, nerves, and glands that secrete mucus and other substances essential for...
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The microscopic anatomy of the liver is a complex and intricate system that comprises numerous structural units known as liver lobules, each of which is comparable in size to a sesame seed. These hexagonal structures consist of plates of liver cells or hepatocytes, which are characterized by their versatility and abundance of cellular apparatus like rough and smooth ER, Golgi apparatus, peroxisomes, and mitochondria.
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Histologic Changes In Recreational Drug Misuse.

Christopher M Milroy, Charis Kepron, Jacqueline L Parai

    Academic Forensic Pathology
    |June 27, 2019
    PubMed
    Summary

    Recreational drug use causes diverse histological changes, affecting organs through injection, smoking, or snorting. This review details these drug-induced histopathological findings, crucial for understanding drug-related deaths.

    Keywords:
    AbuseDrugsForensic pathologyHistologyOrganPathology

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    Area of Science:

    • Forensic Pathology
    • Toxicology
    • Histopathology

    Background:

    • Recreational drug use is linked to various histopathological alterations.
    • These changes stem from administration methods (injection, smoking, snorting) and systemic drug effects.
    • Understanding these features is vital for diagnosing drug-related deaths.

    Purpose of the Study:

    • To review the histopathological features associated with recreational drug use.
    • To correlate specific drugs and administration routes with observed tissue changes.
    • To provide a resource for identifying drug-induced pathology in forensic investigations.

    Main Methods:

    • Review of histopathological findings in cases of recreational drug use.
    • Correlation of observed changes with drug type and administration method.
    • Illustrative case examples are used to demonstrate key findings.

    Main Results:

    • Injection-related changes include local abscesses, systemic amyloidosis, necrotizing fasciitis, and infections (anthrax, clostridial).
    • Smoking can lead to intraalveolar changes with pigmented macrophages (crack cocaine, cannabis).
    • Stimulants are associated with cardiovascular/cerebrovascular pathology, hyperpyrexia, and rhabdomyolysis; opioids with respiratory depression; ketamine with urothelial/liver changes.

    Conclusions:

    • Recreational drug use induces a wide spectrum of histopathological changes.
    • These changes vary significantly based on the drug, route of administration, and potential complications.
    • Histopathological examination is essential for identifying and understanding the impact of recreational drug use in forensic contexts.