Homogenous blue pattern
|Description||This chapter describes the histopathological correlation of homogenous blue pattern as seen in dermoscopy|
|Author(s)||Ralph P. Braun · Oriol Yélamos|
|Responsible author||Ralph Braun → send e-mail|
|Status update||January 1, 2019|
|Status by||This page has not yet been assessed.|
Homogenous blue pattern (structureless blue) is characterized by the presence of blue color with the absence of other dermoscopic structures throughout the entire lesion (Kittler et al., 2016a). Histologically, it corresponds to densely pigmented melanocytes or melanophages in the dermis. Dermoscopic differential diagnosis is broad and includes blue nevi, combined nevi, areas of extensive regression, pigmented nodular melanoma, primary or metastatic melanoma, BCC and radiation tattoos (Scope et al., 2006; Woltsche et al., 2017).