Multiple Dermatofibromas: Dermoscopic Patterns
A 41-year-old healthy woman presented to us with a history of multiple asymptomatic brownish skin lesions for 20 years.\nEleven clinically similar papular-nodular brownish lesions with a smooth surface, ranging from 5 to 10 mm in diameter, were found during the dermatological examination. These nodules were noticed on the trunk, buttocks and lower limbs [].\nThe lesions were indexed and photographed with a digital camera attached to dermoscope and the images stored in order to be evaluated and compared in the future. Dermoscopy with polarized light was performed using the DermLite DL3 dermoscope (Photo DermLite, 3GenLLC, Dana Point, Calif.). All lesions were surgically removed and showed similar histopathological findings consistent with the cellular subtype of dermatofibroma []. Clinical evaluation and laboratory tests for immunosuppression were negative.\nThe dermoscopic patterns of the eleven lesions were evaluated and classified into four different groups. The main pattern (4 lesions, 36.3%) associated with this patient was the delicate peripheral pigment network with central globule like structures []. The second group (3 lesions, 27.2%) in frequency was dermatofibromas with irregular crypts and pseudofollicular openings []. The third observed pattern (3 lesions, 27.2%) had an area of homogeneous pigmentation in the entire lesion []. Finally, the fourth group (1 lesion, 9.0%) consisted of a single lesion with atypical dermoscopic pattern []. A central irregular white scar like patch with pseudofollicular openings and a peripheral erythematous homogeneous macule was noticed.