< CNMD \ <Tutorial \<Second step \ Pattern Analysis\<Back\Next>

Regression Structures

White areas and blue areas are considered together, reflecting the two main morphologic aspects of regression, namely, fibrosis and melanosis

Definition:

White areas (white scarlike areas) and blue areas (gray-blue areas, peppering, multiple blue-gray dots) are commonly associated, resulting in so-called blue-whitish areas that are virtually indistinguishable from blue-whitish veil

White areas and subtle blue areas in a melanoma

Melanoma with intermingled white areas (fibrosis) and blue areas (melanosis). Note that the blue-whitish areas are virtually indistinguishable from blue-whitish veil.