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Appendices

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Section 3. Summaries of Infectious Diseases

Chancroid

Clinical Manifestations
Etiology
Epidemiology
Diagnostic Tests
Treatment
Isolation of the Hospitalized Patient
Control Measures

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CLINICAL MANIFESTATIONS: Chancroid is an acute ulcerative disease that involves the genitalia. An ulcer begins as a tender erythematous papule, becomes pustular, and erodes over several days, forming a sharply demarcated, somewhat superficial lesion with a serpiginous border. The base of the ulcer is friable and may be covered with a gray or yellow, necrotic, and purulent exudate. Single or multiple ulcers may be present. Unlike a syphilitic chancre, which is painless, the chancroidal ulcer often is painful, tender, and nonindurated. The ulcer may be associated with a painful, unilateral inguinal adenitis (bubo), which often is suppurative and fluctuant.

In most males, chancroid manifests as a genital ulcer or inguinal tenderness. Many females are asymptomatic but can, depending on the site of the ulcer, have less obvious symptoms, including dysuria, dyspareunia, vaginal discharge, pain on defecation, or rectal bleeding. Constitutional symptoms are unusual.


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ETIOLOGY: Chancroid is caused by Haemophilus ducreyi, which is a gram-negative coccobacillus.


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EPIDEMIOLOGY: Chancroid is a . . . [Go to Full Text]


Related text in Red Book:

Introduction

Red Book 2006: 735. [Extract] [Full Version]  

Sexually Transmitted Infections

Red Book 2006: 766-773. [Extract] [Full Version]