title: [Differential diagnostic difficulties and atypical primary manifestations of early ankylosing spondylitis].
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D001168:Arthritis / Q000209:etiology; D001172:Arthritis, Rheumatoid / Q000453:epidemiology; D001416:Back Pain / Q000209:etiology; D003092:Colitis / Q000209:etiology; D003937:Diagnosis, Differential; D005260:Female; D006331:Heart Diseases / Q000209:etiology; D006621:Hip Joint; D006801:Humans; D007500:Iritis / Q000209:etiology; D007674:Kidney Diseases / Q000209:etiology; D008297:Male; D008875:Middle Aged; D009437:Neuralgia / Q000209:etiology; D011859:Radiography; D012737:Sex Factors; D013167:Spondylitis, Ankylosing / Q000150:complications / Q000175:diagnosis* / Q000000981:diagnostic imaging / Q000453:epidemiology; D013997:Time Factors
vernacular_title: Uber differentialdiagnostische Schwierigkeiten und atypische Erstmanifestationen der beginnenden Ankylosierenden Spondylitis.