[Under the skin-A special manifestation of a systemic granulomatous disease].

Based on the case of a 33-year-old female patient with Löfgren's syndrome and skin changes in the region of a tattoo, this article describes tattoo sarcoidosis as a special manifestation of cutaneous sarcoidosis. Papulonodular changes that are strictly confined to a tattoo are highly suspicious for tattoo sarcoidosis. Interestingly, tattoo sarcoidosis is commonly associated with the involvement of other organs.