Multiple dermatofibromas: Dermoscopic patterns

Abstract

Dermatofibromas are benign skin lesions that consist of pigmented papules or nodules. They produce the dimple sign when laterally squeezed and are usually found on the legs. These clinical features lead to the diagnosis in most cases. However, the differential diagnosis with other lesions, such as atypical nevi and melanoma can be difficult, and the dermoscopy may help the diagnosis. There are several dermoscopic patterns associated with dermatofibromas, the most common being a central white scar like patch with delicate pigment network at the periphery. This article describes the case of a patient who had eleven clinically similar dermatofibromas, with four distinct patterns when submitted to dermoscopic examination.

Clinical, histopathological, dermatoscopic and digital microscopic features of dermatofibroma: a retrospective analysis of 200 lesions

“…DFSP lacks cytological polymorphism and epidermal changes and has a tighter fusiform pattern with CD34 positivity . There are a limited number of studies investigating histopathological and dermatoscopic features of dermatofibromas in the literature . As far as we aware, the present study is the first to evaluate both histopathological and dermatoscopic features of dermatofibromas.…”

“…13,14 There are a limited number of studies investigating histopathological and dermatoscopic features of dermatofibromas in the literature. 1,[5][6][7]10,11,13,15 As far as we aware, the present study is the first to evaluate both histopathological and dermatoscopic features of dermatofibromas. However, we implemented a preliminary assessment of digital microscopic features of dermatofibroma.…”

“…10 different dermatoscopic patterns were reported. Although there are several studies examining histopathology or dermatoscopy of dermatofibromas separately the literature lacks a study investigating both in the same patient group. In the present study, we aimed to analyse histopathological, dermatoscopic and digital microscopic features of dermatofibromas.…”

Cutaneous metastases: clinical and dermatoscopically simulating multiple dermatofibromas

“…However, the present case demonstrated that CM could also simulate DFs on dermatoscopy. Therefore, a skin biopsy must be undertaken in all doubtful cases, particularly in high‐risk patients and/or with a history of cancer …”

“…Therefore, a skin biopsy must be undertaken in all doubtful cases, particularly in high-risk patients and/or with a history of cancer. 10…”