Demodicosis and rosacea: Epidemiology and significance in daily dermatologic practice - 21/08/11
, Marie-Anne Germaux, MD a, b, c, Thierry Brasseur, MD a, Anne De Liever, MD a, d, Marianne Laporte, MD a, b, Chantal Mathys, MD a, Ursula Sass, MD a, e, Jean-Jacques Stene, MD a, e, Sylvie Thibaut, MD a, f, h, Muriel Tytgat, MD a, b, g, Bruno Seys, MD a
Reprint requests: Fabienne Forton, MD, rue Franz Binjé, 8, B-1030, Brussels, Belgium.Brussels and Charleroi, Belgium
Abstract |
Background |
Demodicoses are thought to be rare, occurring mainly for patients with immunosuppression.
Objective |
We sought to demonstrate the high frequency of demodicoses and the overlapping with papulopustular rosacea (PPR).
Methods |
We conducted a prospective epidemiologic study among 10 dermatologists. High Demodex density (Dd) was confirmed by standardized skin surface biopsy.
Results |
In all, 4372 diagnoses, in which 115 were demodicoses, were collected among 3213 patients. Demodicosis was the 9th most frequent diagnosis (13th new). Each dermatologist observed an average of 2.4 demodicoses a week (1.2 new). The proportion of demodicoses varied greatly according to the dermatologist. The general status was good in 110 patients; only 3 had known immunodeficiency. The most frequent symptoms were follicular scales (71%) and telangiectasia (63%). The mean Dd was higher in pityriasis folliculorum (m=61 D/cm2) than in PPR (m=36 D/cm2; P=.04); 42 patients with PPR had a high Dd, 6 had a low Dd.
Conclusion |
Demodicoses are frequent and occur among patients who are immunocompetent. PPR with normal Dd are rare.
Le texte complet de cet article est disponible en PDF.Plan
| Funding sources: None. Conflicts of interest: None identified. |
Vol 52 - N° 1
P. 74-87 - janvier 2005 Retour au numéro
Article précédent
- Agminated acquired melanocytic nevi of the common and dysplastic type
- Jennifer W. Bragg, Lucinda Swindle, Allan C. Halpern, Ashfaq A. Marghoob
- Corey TJ, DeLeo VA, Christianson H, Poh-Fitzpatrick MB. Variegate porphyria. Clinical and laboratory features. J Am Acad Dermatol 1980;2:36-43.
- Alan Menter
Bienvenue sur EM-consulte, la référence des professionnels de santé.
L’accès au texte intégral de cet article nécessite un abonnement.
Déjà abonné à cette revue ?