A concerned woman with a concealed mole

Case presentation

A 38-year-old woman presented for assessment of a pigmented lesion on the lower abdomen that was usually concealed just beneath the top of her underpants. She felt that the lesion had been present for a number of years, with some darkening and an increase in size over the preceding 12 months. She was otherwise healthy and had no melanoma risk factors, such as a family history or atypical mole pattern.