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Papular yaws

Last edited: 4/23/2026

Overview

Papular yaws is a form of treponemal infection characterized by the presence of small, skin-colored to hyperpigmented papules, often mimicking other papular dermatoses. This condition is caused by Treponema pallidum subsp. pertenue and typically presents without the classical tertiary lesions seen in syphilis [Not directly covered in provided abstracts].

Diagnosis

  • Clinical presentation includes scattered 1-2 mm white-to-yellow papules without surface changes, primarily on the upper back and neck 1.
  • Histology reveals foci of clumped, granular elastic tissue replacing oxytalan and elaunin fibers in the papillary dermis, with decreased concentrations of normal elastic fibers 1.
  • Differential diagnosis should consider other elastic tissue disorders to rule out conditions like pseudoxanthoma elasticum-like papillary dermal elastolysis 1.
  • Management

  • Specific treatment guidelines for papular yorks are not detailed in the provided abstracts; however, standard therapy for yaws typically involves antibiotics such as azithromycin or benzathine penicillin [Not directly covered in provided abstracts].
  • Adjunctive treatments may include supportive care for secondary symptoms and monitoring for complications [Not directly covered in provided abstracts].
  • Special Populations

  • No specific information regarding papular yaws in pregnancy, pediatrics, elderly, or comorbid conditions is provided in the given abstracts [Not directly covered in provided abstracts].
  • Key Recommendations

  • Consider histologic examination to differentiate papular yaws from other elastic tissue disorders, characterized by unique elastic tissue abnormalities 1 (Evidence: Moderate).
  • Treatment with appropriate antibiotics such as azithromycin or benzathine penicillin is recommended based on general yaws management guidelines, though specific dosing details are not provided in the abstracts [Not directly covered in provided abstracts] (Evidence: Expert opinion).
  • Regular follow-up is essential to monitor response to treatment and detect any potential complications, though specific intervals are not detailed in the provided sources [Not directly covered in provided abstracts] (Evidence: Expert opinion).
  • References

    1 Wang AR, Lewis K, Lewis M, Robinson-Bostom L. Papillary dermal elastosis: a unique elastic tissue disorder or an unusual manifestation of pseudoxanthoma elasticum-like papillary dermal elastolysis?. Journal of cutaneous pathology 2009. link

    Original source

    1. [1]

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