Melanocytic Lesion, Adult

The goal of this study is to investigate the ability of two-photon fluorescence microscopy to evaluate dermatologic biopsies. The main questions it aims to answer are: • How well do two-photon fluorescence images of biopsies taken in a clinic and evaluated by a pathologist agree with conventional histology?

This research study is creating a way to collect and store specimens and information from participants who may be at an increased risk of developing cancer, or has been diagnosed with an early phase of a cancer or a family member who has a family member with a precursor condition for cancer. * The objective of this study is to identify exposures as well as clinical, molecular, and pathological changes that can be used to predict early development of cancer, malignant transformation, and risks of progression to symptomatic cancer that can ultimately be fatal. * The ultimate goal is to identify novel markers of early detection and risk stratification to drive potential therapeutic approaches to intercept progression to cancer.