Yellow plaques as cutaneous markers of internal disorders

摘要

A 79-year-old man with rheumatoid arthritis and chronic obstructive lung disease presented with a 5-year history of yellow plaques on his body and face. He denied pruritus, pain, or any other local symptoms. Physical examination revealed extensive, flat, well-demarked, yellow plaques, symmetrically distributed on the trunk, upper arms, and neck [Figure 1]. Laboratory workup showed slightly elevated total cholesterol (240 mg/dl, 6.2 mmol/1), borderline high low-density lipoprotein cholesterol (155 mg/dl, 4.0 mmol/1), and normal levels of triglycerides and high-density lipoprotein cholesterol (evaluation according to the American Heart Association guidelines). Full blood count, liver, thyroid, and renal function tests were within normal limits.