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Pustules in secondary syphilis

R J Pariser, K A Mehr

Sexually Transmitted Diseases

|July 1, 1978

Summary

This summary is machine-generated.

Secondary syphilis can present with large pustules, a rare finding. Microscopic examination revealed polymorphonuclear leukocytes migrating into the epidermis, forming microabscesses, similar to yaws.

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Area of Science:

Dermatology
Infectious Diseases
Microbiology

Background:

Secondary syphilis is a systemic infection caused by Treponema pallidum.
Palmoplantar involvement is common in secondary syphilis, typically presenting as maculopapular lesions.

Observation:

A case of palmoplantar secondary syphilis exhibited unusually large, intact pustules.
Spirochetes were identified within these pustular lesions using darkfield microscopy.

Findings:

The characteristic histopathological finding in the pustules was the migration of polymorphonuclear leukocytes into the epidermis.
This resulted in the formation of intraepidermal microabscesses, a key diagnostic feature.

Implications:

This presentation expands the known spectrum of secondary syphilis morphology.

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The observed histopathological pattern links pustular syphilis to other conditions like framboesiform syphilis and yaws.

Recognizing this pustular variant is crucial for accurate diagnosis and timely treatment of syphilis.