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Cerebral miliary aneurysms in hypertension.

C M Fisher

    The American Journal of Pathology
    |February 1, 1972
    PubMed
    Summary

    This study identified four distinct types of miliary cerebral aneurysms in hypertensive patients, including saccular, lipohyalinotic, and asymmetric fusiform aneurysms, plus the bleeding globe. These findings offer a comprehensive classification of these small brain aneurysms.

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    Marlag 1941-44.

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    Area of Science:

    • Neurology
    • Pathology
    • Vascular Biology

    Background:

    • Hypertension is a significant risk factor for cerebrovascular diseases.
    • Miliary cerebral aneurysms are small vascular lesions often associated with hypertension.
    • Previous classifications of these aneurysms lack comprehensive detail.

    Purpose of the Study:

    • To classify the distinct structural types of miliary cerebral aneurysms in hypertensive individuals.
    • To differentiate aneurysmal structures from a non-aneurysmal entity, the bleeding globe.
    • To provide a comprehensive overview of miliary cerebral aneurysms.

    Main Methods:

    • Histological examination of serial sections from brain tissue blocks.
    • Analysis of tissue from hypertensive patients with a history of cerebral hemorrhage or lacunar infarcts.
    • Detailed morphological characterization of identified vascular structures.

    Main Results:

    • Identification of three distinct aneurysmal types: saccular, lipohyalinotic, and asymmetric fusiform.
    • Identification of one non-aneurysmal structure, termed the bleeding globe.
    • These four structures likely encompass all described miliary cerebral aneurysms over the past century.

    Conclusions:

    • A refined classification of miliary cerebral aneurysms based on distinct structural morphologies is proposed.
    • The findings contribute to a better understanding of the pathology of small cerebral aneurysms in hypertension.
    • This comprehensive survey provides a foundational classification for future research.

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