title: Atypical fluorescence in the FTA-ABS test.
mesh_terms: D000328:Adult; D000368:Aged; D003937:Diagnosis, Differential; D005189:False Positive Reactions; D005260:Female; D005455:Fluorescent Antibody Technique; D006801:Humans; D008180:Lupus Erythematosus, Systemic / Q000175:diagnosis*; D008297:Male; D008875:Middle Aged; D013588:Syphilis Serodiagnosis; D014209:Treponema Immobilization Test