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Case Reports
. 2022 Sep:122:644-646.
doi: 10.1016/j.ijid.2022.07.028. Epub 2022 Jul 13.

Annular rupioid secondary syphilis confined to the face

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Free article
Case Reports

Annular rupioid secondary syphilis confined to the face

Tianhang Yu et al. Int J Infect Dis. 2022 Sep.
Free article

Abstract

Objectives: Syphilis is a sexually transmitted infection (STI) caused by treponema pallidum. Its rash usually affects the trunk and limbs extensively, including the palms and soles of the feet. Secondary syphilis confined to the face is extremely rare.

Methods: We report a case of annular rupioid secondary syphilis, which was misdiagnosed as verruca vulgaris.

Results: The patient's lesions were confined to the face and resembled oyster shells. Her serological tests results were positive for treponema pallidum particle agglutination assay (TPPA) and rapid plasma reagin (RPR) (1:64).

Conclusion: According to epidemiological history, clinical presentation, non-treponemal tests, treponemal tests, and effective benzathine penicillin G treatment, confirmed secondary syphilis.

Keywords: Face; Localized; Oyster shell-like; Serological tests; Syphilis.

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Conflict of interest statement

Conflict of interest The authors have no competing interests to declare.

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