Table 2.
Homogeneous pattern | Diffuse pigmentation red, brown, gray, or grayish black |
Saccular pattern | Oval junctional nests containing atypical melanocytic cells |
Amelanotic pattern | Dermal localization and lack of pigment |
Vascular pattern | Punctate vessels in thin lesions and corkscrew vessels in thick ones |
Polymorphic pattern | Chaotic structures and vessels |