CalcinosisCREST SyndromeSkin Diseases, MetabolicDermatomyositisHyperphosphatemiaN-AcetylgalactosaminyltransferasesSkin DiseasesScleroderma, SystemicFoot DiseasesJoint DiseasesCalciphylaxisTelangiectasisHyperostosis, Cortical, CongenitalSkin UlcerCalcium GluconateEyelid DiseasesNadroparinNephrocalcinosisCalcium PyrophosphateDurapatitealpha-2-HS-GlycoproteinBasal Ganglia DiseasesPhosphatesDermatologic AgentsRaynaud DiseaseCardiomyopathiesFibroblast Growth FactorsDelayed DiagnosisAntibodies, AntinuclearPrenatal DiagnosisEarly DiagnosisPhosphorusBiopsyGlucuronidaseCentromereRetrospective StudiesSensitivity and SpecificityTomography, X-Ray ComputedOsteopontinFingersAutoantibodiesDiagnosisFollow-Up StudiesMagnetic Resonance ImagingSkinTreatment OutcomeDiagnostic ErrorsKidney Failure, ChronicCalcium