• Dermatol Surg · Oct 2002

    Case Reports

    Pitfall in pigmentation: pseudopods in the nail plate.

    • Norbert Haas and Beate-Maria Henz.
    • Department of Dermatology, Medical Faculty (Charité), Humboldt-University Berlin, Berlin, Germany. norb.haas@charite.de
    • Dermatol Surg. 2002 Oct 1; 28 (10): 966-7.

    BackgroundWe present here a patient with an unusual type of nail plate pigmentation featuring pseudopod formation.ObjectiveTo identify additional dermoscopic criteria.MethodsDermoscopy of the nail with control biopsy.ResultsPseudopods of the nail resulted from erythrocytes entrapped between the layers of the nail plate.ConclusionPseudopod formation of the nail may represent a diagnostic criterion to distinguish hemorrhage and melanoma of the nail apparatus.

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