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[Subungual exostosis].

K Rutkai, J Daróczy

    Der Hautarzt; Zeitschrift Fur Dermatologie, Venerologie, Und Verwandte Gebiete
    |July 1, 1986
    PubMed
    Summary

    Subungual exostosis, a painful toe tumor, was misdiagnosed for years. Histological diagnosis confirmed benign osteochondroma, with local curettage being the recommended treatment for this condition.

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    Area of Science:

    • Orthopedics
    • Dermatology
    • Pathology

    Background:

    • Subungual exostosis is a benign bone tumor that grows under the nail.
    • It can cause pain and discomfort, affecting daily activities.
    • Misdiagnosis as a common wart (verruca vulgaris) can delay appropriate treatment.

    Observation:

    • A 56-year-old male presented with a painful subungual tumor on his big toe.
    • The lesion was initially treated unsuccessfully for several years, presumed to be a verruca vulgaris.
    • Radiographic imaging suggested an exostosis.

    Findings:

    • Histological examination confirmed the diagnosis of benign osteochondroma.
    • The tumor's location beneath the nail (subungual) presented diagnostic challenges.
    • The patient's long-standing, ineffective treatments highlighted the initial misdiagnosis.

    Implications:

    • Accurate and timely diagnosis of subungual exostosis is crucial for effective management.
    • Histopathological and radiographic assessments are vital for differentiating it from other subungual lesions.
    • Local curettage is established as the primary surgical treatment for symptomatic subungual exostosis.

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