Medical Must-See: Migrating tattoo ink mimics endometriosis

The woman’s suspicious lesion contained ink ‘resembling gunpowder’.
Rachel Fieldhouse
A dark lesion (arrow), resembling gunpowder, along the right sidewall.

A young woman’s leg tattoo was the source of clinical confusion for US doctors after her suspected endometriosis turned out to be lymphadenopathy triggered by ink migration.

The 28-year-old presented with six months of worsening dysmenorrhea that had become constant and was exacerbated by bowel movements.