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Dermoscopic follow-up of cutaneous rosai-dorfman: Spontaneous regression
Chan Hu1, Yajing Cao1, Xiaoqin Yang1
1Institute of Photomedicine, Shanghai Skin Disease Hospital, Tongji University School of Medicine, Shanghai, China.
Background:
Cutaneous rosai-dorfman(CRDD) is a rare non-langerhans cell histiocytosis with unknown origin. Studies reporting the dermoscopic features of CRDD are limited.
Case Presentation:
We report a case of a 62-year-old Asian woman with 1-month history of a solitary reddish nodule on her left nose wing which was histolocically diagnosed as CRDD. The lesion underwent spontaneous remission without any intervention.Dermoscopy was utilized for follow-up observation.
Results:
The dermoscopic features of the CRDD lesion included red-brownish and red-orange background, yellowish follicular keratotic plugs, whitish opaque cotton structures and linear- irregular vessels. These features gradully faded away along with the remission of the lesion.
Conclusions:
We describe the dynamic dermoscopic changes of the remission process of CRDD. Dermoscopy is potentially useful in the assessment and follow-up of CRDD patients.
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