title: [Achilles tendon xanthoma imaging on ultrasound and magnetic resonance imaging].
abstract: The Achilles tendon xanthoma is a rare disease and has a high association with primary hyperlipidemia. An early diagnosis is essential to start treatment and change the disease course. Imaging exams can enhance diagnosis. This study reports the case of a 60-year-old man having painless nodules on his elbows and Achilles tendons without typical gout crisis, followed in the microcrystalline disease clinic of Unifesp for diagnostic workup. Laboratory tests obtained showed dyslipidemia. The ultrasound (US) showed a diffuse Achilles tendon thickening with hypoechoic areas. Magnetic resonance imaging (MRI) showed a diffuse tendon thickening with intermediate signal areas, and a reticulate pattern within. Imaging studies showed relevant aspects to diagnose a xanthoma, thus helping in the differential diagnosis.
authors: Departamento de Diagnóstico por Imagem da Universidade Federal de São Paulo, São Paulo, SP, Brasil.
authors: Eloy de Ávila
authors: Ede Á
authors: Fernandes
authors: Departamento de Diagnóstico por Imagem da Universidade Federal de São Paulo, São Paulo, SP, Brasil. Electronic address: eduardo_sena1@yahoo.com.br.
authors: Eduardo Henrique Sena
authors: EH
authors: Santos
authors: Departamento de Diagnóstico por Imagem da Universidade Federal de São Paulo, São Paulo, SP, Brasil.
authors: Tatiana Cardoso de Mello
authors: TC
authors: Tucunduva
authors: Departamento de Medicina da Universidade Federal de São Paulo, São Paulo, SP, Brazil.
authors: Antonio J L
authors: AJ
authors: Ferrari
authors: Departamento de Medicina da Universidade Federal de São Paulo, São Paulo, SP, Brazil.
authors: Artur da Rocha Correa
authors: Ada R
authors: Fernandes
mesh_terms: D000125:Achilles Tendon; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D008875:Middle Aged; D052256:Tendinopathy; D014463:Ultrasonography; D014973:Xanthomatosis / Q000000981:diagnostic imaging*
keywords: Achilles tendon; Magnetic resonance imaging; Ressonância magnética; Tendão calcâneo; Ultrasound; Ultrassonografia; Xanthoma; Xantoma