Diagnostic utility of unidentified precipitin lines (UPLs) in immune precipitation assays.


Unidentified precipitin lines (UPLs) are lines in immune precipitin assays which do not characterise with known extractable nuclear antigen (ENA) antibodies. Currently, the clinical significance of UPLs is uncertain.The aim of this study was to determine the clinical and laboratory correlates of UPLs detected over a 3 year period in a regional… (More)
DOI: 10.1097/PAT.0000000000000189