Dermoscopic Findings of Rosacea and Demodicosis

Abstract

Background: Rosacea is a common chronic inflammatory disorder affecting the facial skin. Objectives: Dermoscopy is a noninvasive procedure that is commonly used for the diagnosis of dermatological diseases. This article aims to determine the clinical and dermoscopic manifestations of the rosacea patients and the presence of the accompanying Demodex . Materials and Methods: The study evaluated 23 patients who were diagnosed with rosacea through clinical and dermoscopic findings. The patients were clinically and dermoscopically photographed and were classified according to the rosacea classification. The presence of Demodex was demonstrated both dermoscopically and through biopsy. Results: There were a total of 23 participants (17 females and 6 males). The ages of the participants ranged between 28 and 75, with an average of 49. Among the 23 participants, 14 were erythematotelangiectatic, 7 were papulopustular, and 2 were rhinophyma. A total of 12 participants (4 males and 8 females) had ocular involvement. The most common dermoscopic finding was a linear vascular structure. A total of 15 patients (11 females and 4 males) had the demodicosis finding. Conclusion: The diagnosis of rosacea and demodicosis through dermoscopic findings is as reliable as a biopsy and it has the advantage of being noninvasive.

Summarization and comparison of dermoscopic features on different subtypes of rosacea

“…The morphology of these vessels reflects major pathophysiologic alteration of intense vasodilatation. [ 21 ] Besides, the red diffuse structureless areas were equal to former red backgrounds, corresponded to erythema clinically and telangiectasia pathologically, and were more common in ETR and PPR.…”

“…Rosacea diagnoses are usually performed by medical history and physical examinations, which might be difficult due to the clinical manifestations’ similarities to several skin conditions. Dermoscopy, a non-invasive technique that allows real-time and in vivo examination of various skin diseases, has been used to distinguish rosacea from its visual analogs [8–19,15,21,22] . Therefore, a comprehensive understanding of the dermoscopic features of rosacea is crucial to guide clinical practice.…”

“…Dermoscopy, a non-invasive technique that allows real-time and in vivo examination of various skin diseases, has been used to distinguish rosacea from its visual analogs. [8][9][10][11][12][13][14][15][16][17][18][19]15,21,22] Therefore, a comprehensive understanding of the dermoscopic features of rosacea is crucial to guide clinical practice. However, the dermoscopic characteristics of PHR have not been thoroughly investigated.…”

Dermoscopy of inflammatory skin diseases

“…In diesem Fall kann man klinisch Rosazea-ähnliche Symptome mit follikulärer Hyperkeratose beobachten. Bei der Dermatoskopie wird am häufigsten eine follikuläre, weiße Masse („ Demodex -Schwanz“) festgestellt, manchmal auch eine breite graue Farbe von 1–3 mm um die Follikelöffnung herum ( Demodex -Follikelöffnung) ([ 22 , 23 ]; Abb. 7 e, f).…”

Super‐high magnification dermoscopy can detect Demodex folliculorum

“…400x dermoscopy also allowed to observe a mite outside the hair follicles (Figure 1d). Although features of demodicosis and rosacea have been described, 3 there is evidence that conventional dermoscopy could not be so effective in the detection of demodex and that standardized skin surface biopsy or RCM could be necessary. 4 Recently, ultraviolet dermoscopy has been reported to be effective in detecting demodex mites in rosacea.…”