Dermoscopy Pattern Analysis | Dermatology Education Dermoscopy Pattern Analysis Video
May 22, 2019

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Dermoscopy Pattern Analysis

Pattern analysis is the procedure most used by dermatologists. There are two steps. First one must determine if the lesion is melanocytic or nonmelanocytic.

Identification of a pigment network, aggregated dots and globules, branched streaks and homogenous blue pigmentation are highly characteristic of pigmented lesions.

Many dermoscopic criteria have been identified for non-melanocytic lesions such as seborrheic keratosis, basal cell carcinoma and angiomas. The vast majority of these non-melanocytic lesions can be, I feel, more efficiently identified with a 10x ocular and not the dermatosope.

If the lesion has been identified as pigmented then the next step is to determine if it is benign or malignant. Benign lesions have global features that are uniform. Malignant lesions have atypical global features.