Pimenta, RitaGomes, Manuel FerreiraOliveira, AndréKutzner, HeinzSoares-de-Almeida, Luís2021-06-112021-06-112020-12JAAD Case Rep. 2020 Oct 10;6(12):1194-1195http://hdl.handle.net/10451/48464© 2020 by the American Academy of Dermatology, Inc. Published by Elsevier, Inc. This is an open access article under the CC-BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).A 61-year-old man presented with a 3-year history of slowly progressive yellowish plaques involving both eyelids (Fig 1). He also complained of intermittent retro-orbital headache, bilateral lower extremity pain, and increasing fatigue over the preceding year. His medical history was other-wise unremarkable.engErdheim-Chester diseaseConfocal microscopyHistiocytosisjournal article10.1016/j.jdcr.2020.10.0072352-5126