Article Correctness Is Author's Responsibility: Blurry Vision and a Black Ink Tattoo

A 26-year-old white man had recurrent episodes of ocular redness and blurry vision coincident with nodular skin elevation in a left-arm tattoo. Slit lamp examination revealed inflammatory cells in the anterior chamber of the left eye; punch biopsy of the tattooed skin revealed pigment-containing macrophages. What is the diagnosis and what would you do next?