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Tricholemmomas in three dogs.

K M Walsh, W V Corapi

    Journal of Comparative Pathology
    |January 1, 1986
    PubMed
    Summary
    This summary is machine-generated.

    This study describes tricholemmomas, a rare hair follicle tumor, in three dogs. These tumors show characteristic PAS-positive cells and are uncommon in domestic animals.

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    Area of Science:

    • Veterinary Pathology
    • Dermatopathology
    • Oncology

    Background:

    • Tricholemmomas are uncommon benign tumors originating from the outer root sheath of hair follicles.
    • Previous reports of tricholemmomas in domestic animals are rare.
    • Understanding the characteristics of these tumors is important for accurate diagnosis and treatment.

    Purpose of the Study:

    • To describe the histopathological features of tricholemmomas in three canine cases.
    • To contribute to the limited literature on this rare hair follicle tumor in domestic animals.

    Main Methods:

    • Histopathological examination of skin tumors from three dogs.
    • Evaluation of characteristic cellular morphology and staining patterns (PAS, eosinophilic band).

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    Main Results:

    • Three cases of canine tricholemmoma were identified.
    • Tumors were characterized by lobules of periodic acid-Schiff (PAS)-positive epithelial cells.
    • A peripheral palisade of cells surrounded by an amorphous eosinophilic band was observed.

    Conclusions:

    • This report documents the second occurrence of tricholemmoma in domestic animals.
    • The findings highlight the distinct histopathological features of canine tricholemmoma.
    • Further research may elucidate the specific etiology and behavior of this uncommon tumor.