The Dermoscopic “Chromosome Arms Sign” for Terra Firma-Forme Dermatosis

Abstract

Introduction
Terra firma-forme dermatosis (TFFD) belongs to the group of “dirty dermatoses” and represents a not well-known and surely
underestimated skin condition.
Clinical Cases
We present 2 cases of TFFD and present clinical and dermatoscopical findings.
Results
We present specific dermatoscopical findings of TFFD.
Conclusion
We propose the denomination “chromosome arms” sign for Terra firma-forme dermatosis.