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[Rosacea: histopathologic study of 75 cases].

A A Ramelet¹, G Perroulaz

¹Service de dermatologie et de vénéréologie, CHUV, (Centre Hospitalier universitaire vaudois), Lausanne, Suisse.

Annales De Dermatologie Et De Venereologie

|January 1, 1988

Summary

Histological examination of rosacea patients revealed elastotic degeneration, vasodilatation, and inflammatory infiltrates in all cases. Demodex folliculorum may play a role in rosacea pathogenesis, particularly its granulomatous form.

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Area of Science:

Dermatopathology
Microbiology

Context:

Rosacea is a common but poorly understood skin condition.
Few histological studies have thoroughly investigated rosacea's underlying pathology.
This study examines histological features in a large cohort of confirmed rosacea patients.

Purpose:

To histologically characterize rosacea, evaluating features like elastotic degeneration, vasodilatation, and inflammatory infiltrates.
To investigate the potential role of Demodex folliculorum in rosacea pathogenesis, especially in granulomatous presentations.

Summary:

Histological analysis of 75 rosacea patients revealed universal elastotic degeneration, vasodilatation, and inflammatory infiltrates.
Infiltrates varied, predominantly lympho-histiocytic, with some neutrophilic or tuberculoid patterns.

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Demodex folliculorum was investigated, with findings suggesting a potential, though uncertain, role in granulomatous rosacea.

Impact:

Provides detailed histological insights into rosacea, aiding in disease definition and diagnosis.
Highlights the potential involvement of Demodex folliculorum, guiding future research into its pathogenic mechanisms.
Contributes to understanding the diverse inflammatory patterns observed in rosacea.