Is pigmented BCC a unique histological variant or is it only a clinical presentation?

Is pigmented BCC a unique histological variant or is it only a clinical presentation?
Australas J Dermatol. 2019 Oct 18;:
Authors: Xavier-Júnior JCC, Ocanha-Xavier JP, Camilo-Júnior DJ, Pires D'ávilla SCG, Mattar NJ
PMID: 31625594 [PubMed - as supplied by publisher]

Source: The Australasian Journal of Dermatology - October 17, 2019 Category: Dermatology Authors: Xavier-Júnior JCC, Ocanha-Xavier JP, Camilo-Júnior DJ, Pires D'ávilla SCG, Mattar NJ Tags: Australas J Dermatol Source Type: research