CalcinosisCREST SyndromeSkin Diseases, MetabolicDermatomyositisLower ExtremityHyperphosphatemiaN-AcetylgalactosaminyltransferasesUpper ExtremitySkin DiseasesFoot DiseasesScleroderma, SystemicCalciphylaxisJoint DiseasesExtremitiesTelangiectasisSkin UlcerHyperostosis, Cortical, CongenitalCalcium GluconateNadroparinEyelid DiseasesCalcium PyrophosphateNephrocalcinosisDurapatitealpha-2-HS-GlycoproteinBasal Ganglia DiseasesRaynaud DiseaseDermatologic AgentsPhosphatesLegFibroblast Growth FactorsCardiomyopathiesAntibodies, AntinuclearFingersGlucuronidasePhosphorusCentromereAmputationBones of Upper ExtremityArmLeg InjuriesOsteopontinTreatment OutcomeArm InjuriesBones of Lower ExtremityAutoantibodiesSkinRetrospective StudiesTomography, X-Ray ComputedFollow-Up StudiesBiopsySoft Tissue NeoplasmsSarcomaLeg BonesPeripheral Vascular DiseasesMagnetic Resonance ImagingLimb SalvageKidney Failure, ChronicIschemiaUpper Extremity Deep Vein ThrombosisCalciumVascular Surgical Procedures