![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjkrSHOjyhZmpCpT0ONf4Zk7xkCPATp_7Le_ybDLM2V7G4djNI6tbTiJwv-buGUmlT7se4ODMMP95V9FpeaAVAua5pOYHSXlYpiF8B7VTWuMmhW6rQKeMd7SFYK6a8Zfm9cumVBdnHzVzY/s400/FbPattern.jpg)
The dermoscopic feature was typical of a fibrillar pattern.
The fibrillar pattern was uniform and localized on the entire surface of the lesion. That was in favor of a benign acral melanocytic nevus.
The fibrillar pattern is a subtype of parallel furrow pattern observed on high-pressure areas and in hyperkeratotic areas.
Fibrillar pattern are quite never observed on palmar surface.
It has to be reminded that fibrillar pattern is in favor of a benign acral nevus only if it occupies the whole surface of the lesion. Melanomas can dysplay a fibrillar pattern in focal areas in a disorganized manner.
Reference:
Braun RP, Kopf AW, Marghoob AA. Comment on dermoscopy patterns of melanocytic nevi on the sole. J Am Acad Dermatol 2006; 55: 162-3
Other cases of fibrillar pattern: 1 2 3