Can Antinuclear Antibodies (ANA) be Monoclonal?

Figure 1

Immunofluorescence findings in a patient with positive IgA nuclear staining. (a) Negative stain for IgG in the nuclei. (b) Positive stain for IgA in the nuclei. (c) Negative stain for kappa light chain in the nuclei. (d) Positive stain for lambda light chain in the nuclei. Magnification 200x.

(a)

(b)

(c)

(d)