Lillo, EugeniaGutierrez-Cardo, AntonioMurcia-Casas, BelenCarrillo-Linares, Juan LuisGarcia-Argüello, FranciscoChicharo-de-Freitas, ReinaldoBaquero-Aranda, IsabelValdivielso, PedroGarcia-Fernandez, MariaSanchez-Chaparro, Miguel Angel2022-12-132022-12-132021-06-11Lillo E, Gutierrez-Cardo A, Murcia-Casas B, Carrillo-Linares JL, Garcia-Argüello F, Chicharo de Freitas R, et al. Cutaneous and Vascular Deposits of 18F-NaF by PET/CT in the Follow-Up of Patients with Pseudoxanthoma Elasticum. J Clin Med. 2021 Jun 11;10(12):2588http://hdl.handle.net/10668/4491Active microcalcification of elastic fibers is a hallmark of pseudoxanthoma elasticum and it can be measured with the assessment of deposition of 18F-NaF using a PET/CT scan at the skin and vascular levels. It is not known whether this deposition changes over time in absence of specific therapy. We repeated in two years a PET/CT scan using 18F-NaF as a radiopharmaceutical in patients with the disease and compared the deposition at skin and vessel. Furthermore, calcium score values at the vessel wall were also assessed. Main results indicate in the vessel walls that calcification progressed in each patient; by contrast, the active microcalcification, measured and target-to-background ratio showed reduced active deposition. By contrast, at skin levels (neck and axillae) the uptake of the pharmaceutical remains unchanged. In conclusion, because calcification in the arterial wall is not specific for pseudoxanthoma elasticum condition, the measurement of the deposition of 18F-NaF in the neck might be potentially used as a surrogate marker in future trials for the disease.enAtribución 4.0 Internacionalhttp://creativecommons.org/licenses/by/4.0/Pseudoxanthoma elasticumInorganic pyrophosphateMicrocalcification18F-NaFPET/CTMedical Subject Headings::Organisms::Eukaryota::Animals::Chordata::Vertebrates::Mammals::Primates::Haplorhini::Catarrhini::Hominidae::HumansMedical Subject Headings::Chemicals and Drugs::Chemical Actions and Uses::Pharmacologic Actions::Diagnostic Uses of Chemicals::RadiopharmaceuticalsMedical Subject Headings::Analytical, Diagnostic and Therapeutic Techniques and Equipment::Diagnosis::Diagnostic Techniques and Procedures::Diagnostic Imaging::Tomography::Tomography, X-Ray::Tomography, X-Ray ComputedMedical Subject Headings::Chemicals and Drugs::Inorganic Chemicals::Elements::Metals, Alkaline Earth::CalciumMedical Subject Headings::Anatomy::Tissues::Connective Tissue::Elastic TissueMedical Subject Headings::Diseases::Cardiovascular Diseases::Vascular Diseases::Hemostatic Disorders::Pseudoxanthoma ElasticumMedical Subject Headings::Diseases::Nutritional and Metabolic Diseases::Metabolic Diseases::Calcium Metabolism Disorders::CalcinosisMedical Subject Headings::Chemicals and Drugs::Pharmaceutical Preparationsresearch article34208205open accessSeudoxantoma elásticoPirofosfatasa inorgánicaCalcinosisFluoruro de sodioTomografía computarizada por tomografía de emisión de positronesTejido elástico10.3390/jcm101225882077-0383PMC8230828