Blood Protein DisordersXanthomatosisHyperlipoproteinemiasHyperlipoproteinemia Type IIXanthogranuloma, JuvenileArcus SenilisSitosterolsCholestanolHistiocytosis, Non-Langerhans-CellAchilles TendonCholestanetriol 26-MonooxygenaseTendonsCholesterolLipid Metabolism, Inborn ErrorsMandibular DiseasesTendinopathySkin DiseasesHyperlipidemiasBrain Diseases