Trichofolliculoma with a New Pattern in Dermoscopy: “Rosary Bead with Tassel”

Abstract

Trichofolliculoma is a rare tumour, presenting as a facial papule with central hairs on the scalp, face, neck and vulva of adults. Recently, dermoscopic examination has proven valuable in a great number of dermatological diseases. Easy-to-guess dermoscopic patterns differ according to the variability and duration of the lesion in cases of trichofolliculoma. Recently, two dermoscopic demonstrations of trichofolliculoma were published. One was defined as a “firework pattern”, histopathologically resembling nests of cells radiating from a follicular epithelium. The other was depicted as a “bluish nodule with a central white-pink area, shiny white structures and dotted vessels”. This paper presents a new dermoscopic pattern, termed “rosary bead with tassel”. The nodule resembled a “rosary bead” and the tufted hairs, the “tassel”.  In two cases presented herein, the lesions were in late stages with one and three-year histories. Describing a new dermoscopic variant of trichofolliculoma related to different clinical features can help to improve the success of the diagnosis with dermoscopy

Keywords

• Trichofolliculoma,Dermoscopy

References

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