Table 1: Interference of ANCA pattern recognition in sera containing ANA or AMA.

Visual scoreAKLIDESConcordance

ANA homogenous
 1/80 ( )3 negative, 3 nuclear3 negative, 3 P-ANCA3/6 (50.0%)
 1/320 ( )2 negative, 5 nuclear2 negative, 5 P-ANCA2/7 (28.6%)
 1/1280 ( )4 nuclear, 3 P-ANCA7 P-ANCA3/7 (42.9%)

ANA speckled ( )2 negative, 2 nuclear, 1 atypic2 negative, 2 P-ANCA, 1 ANA-dots3/5 (60.0%)
 Atypical speckled ( )1 negative, 3 P-ANCA1 negative, 2 P-ANCA, 1 undetermined3/4 (75.0%)
 Centromere ( )3 nuclear, 1 atypic4 ANA-dots3/4 (75.0%)
 Nucleolar ( )2 negative2 negative2/2 (100%)

AMA ( )1 negative, 2 P-ANCA,
2 C-ANCA, 4 atypic, 2 nuclear
4 negative, 3 P-ANCA, 1 C-ANCA,
3 ANA-dots
4/11 (36.4%)

AMA: antimitochondrial antibodies; ANA: antinuclear antibodies; ANCA: antineutrophil cytoplasmic antibodies.
NB: a nuclear pattern in the visual score is considered concordant with ANA-dots by the AKLIDES system.