A woman had a line on her nail that looked like a splinter, which was an aggressive skin cancer. Charmaine Sherlock didn't think that such a small mark could be as dangerous as melanoma. Sherlock told ...

This summer, Charmaine Sherlock noticed a thin black line under her nail of her left thumb — what looked like a splinter growing from her cuticle. She thought perhaps she was having an autoimmune ...

(NEXSTAR) – What started out as a “tiny little brown line” on one woman’s fingernail led to a rare, potentially life-threatening medical condition, one that she’s now trying to help others catch early ...