Pruritic annular concentric plaques

Qian, Yunliang; Ma, Dong‐Lai

doi:10.1136/bmj.l5512

Cited by 2 publications

(2 citation statements)

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“…2 Lesions in annular secondary syphilis often occur close to the angle of the mandible and frequently spare the palms and soles. [3][4][5] Secondary syphilis typically presents without lymphadenopathy and often affects the genitalia. 5…”

Section: Clinical Presentationmentioning

confidence: 99%

Petaloid dermatosis affecting the scalp and genitalia

Bullock,

Agrawal,

Bergfeld

2023

CCJM

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A 41-year-old-male presented with a 1-month history of pruritic lesions on his scalp, neck, and penis. He had attempted a 2-week course of terbinafi ne cream, with no improvement. The lesions were unaffected by exposure to sunlight. The patient also reported new-onset wrist stiffness and pain. He had been diagnosed with primary syphilis 9 months prior to presentation, with a reactive plasma reagin titer of 1:64, and had been treated with intramuscular penicillin G benzathine 2.4 million units.Physical examination revealed annular and petaloid plaques with central clearing and raised borders on the scalp, right mandibular angle (Figure 1), and penis (Figure 2). No lesions were observed on the oral mucosa, palms, or soles. No lymphadenopathy or new-onset alopecia was present.Clinically, the differential diagnosis included discoid lupus erythematosus, lichen planus, tinea infection, sarcoidosis, and annular secondary syphilis. Serology for human immunodefi ciency virus was nonreactive, and cutaneous punch biopsy of the mandibular lesion was performed. Histologic sections revealed

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Section: Clinical Presentationmentioning

confidence: 99%

Petaloid dermatosis affecting the scalp and genitalia

Bullock,

Agrawal,

Bergfeld

2023

CCJM

View full text Add to dashboard Cite

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“…The most common cutaneous manifestation of secondary syphilis is the generalized non-pruritic maculopapular rash. It usually involves the palms and soles of the feet, but may also present as papular, nodular, nodular ulcerative, follicular, pustular, annular, and lichenoid eruptions (Qian and Ma, 2019). Rupioid syphilis is relatively rare, and it usually manifests as skin all over the body (Liu and Ma, 2021).…”

Section: Introductionmentioning

confidence: 99%