Systemic candidiasis in heroin abusers. Cutaneous findings.

Area of Science:

• Infectious Diseases
• Mycology
• Dermatology

Background:

• A novel syndrome of systemic candidiasis has emerged in intravenous drug abusers (IVDA).
• This condition is caused by Candida albicans and presents with a characteristic triad of skin, ocular, and osteoarticular lesions.
• The clinical presentation differs markedly from classic disseminated candidiasis seen in immunocompromised individuals.

Purpose of the Study:

• To describe the clinical features and potential etiology of systemic candidiasis in IVDA.
• To differentiate this new syndrome from other forms of candidiasis.
• To discuss the origin of Candida albicans and its specific organ localization in this patient group.

Main Methods:

• Study of 30 patients presenting with skin lesions suggestive of candidiasis.
• Clinical examination for skin, ocular, and osteoarticular involvement.
• Microscopic examination of skin lesions for Candida albicans hyphae.
• Assessment for candidemia in affected patients.

Main Results:

• Patients exhibited characteristic skin lesions (papules, nodules, pustules) in hair-bearing areas, with evidence of fungal hyphae invasion.
• Ocular and osteoarticular involvement was observed, alongside candidemia in some cases, indicating hematogenous spread.
• The syndrome was associated with the use of "brown" heroin.

Conclusions:

• Systemic candidiasis in IVDA represents a distinct clinical entity with a unique presentation and affected organs.
• The pathogenesis likely involves hematogenous dissemination of Candida albicans, possibly related to heroin use.
• Further research is needed to understand the specific factors driving this localized infection and to optimize therapeutic strategies.