This case involves a female patient in Montana who was diagnosed with advanced melanoma. The patient had a known family history of melanoma, and her mother died from it a few years before the events in this case. The patient had a lesion which had been diagnosed as seborrheic keratosis on her back, which had been treated with liquid nitrogen on several occasions. On one occasion, the patient presented to the Defendant and reported that the lesion had changed, though no action was taken. The patient returned to the Defendant again some time later, with the lesion still present. The patient presented to a new dermatologist a few months later, and a punch biopsy was performed that same day. The biopsy results revealed the lesion to be a malignant melanoma. The patient then underwent a biopsy that revealed a metastatic melanoma that had spread to multiple lymph nodes. It is alleged that the patient would have had a better outcome if her cancer had been diagnosed sooner.