This post covers several articles that looks at the odds for positive sentinel nodes and recurrences in folks with thin melanoma lesions - also noting being less than age 40 increases risk: With melanoma you can never be too rich or too thin! But, you can be too young!
The article covered here indicates: "the only clinicopathologic factors associated with longer Progression Free Survival (PFS) and OS were being female and a normal pretreatment serum lactate dehydrogenase (LDH) level." Being female with low LDH and no ulceration in primary and BRAF V600 positive = increased survival rates with BRAFi
And then there is this: Melanoma risk significant among pregnant women
For what it's worth - c