PMC6236921_01
Clinical manifestation of the patient. (a) The patient with a butterfly tattooed on his chest. (b, c) Typical CADM rash in the back of neck and bilateral elbow.
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Five months before admission, he had tattooed a butterfly on his right chest with blue and red ink (Figure 1(a)). Then, four months before admission, erythema appeared on multiple parts of the skin, including the face, the extensor surface of the bilateral elbow, the metacarpophalangeal joints (MCP2-4), the neck, the chest, and the right side of the back (Figures 1(b) and 1(c)).
CT scan of patient in different stages. (a) A chest CT scan showing exudative lesions when he came to our hospital for the first time. (b) After treatment, the ILD gradually improved. (c) A CT scan indicating advanced ILD when the patient came to our hospital again.
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A computed tomography (CT) scan of the chest indicated ILD (Figure 2(a)). After treatment, the rash and the ILD gradually improved (Figure 2(b)), and the patient was discharged from the hospital. A CT scan indicated advanced ILD (Figure 2(c)).
Dermatopathologic analysis of the patient. (a-c) Dermatopathologic analyses of the blue part and red part of the tattoo and of normal skin, respectively. However, there was no significant difference of lymphocytic infiltration between the blue and the red part of the tattoo.
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But no significant difference of lymphocytic infiltration was detected between the blue and the red part of the tattoo (Figures 3(a)-3(c)).