Can Antinuclear Antibodies (ANA) be Monoclonal?

Table 1

Demographic and laboratory data of the participants.

Case	Age	Gender	Race	BL SCr (mg/dl)	SCr at the time of bx (mg/dl)	Proteinuria	Hematuria	ANA	Monoclonal gammopathy
1	84	F	C	1.1	3.6	n/a	TNTC	1 : 640	SPEP/UPEP negative
2	69	F	C	2.3	2.8	0.6 g/g	100/HPF	1 : 640	Not performed
3	22	F	C	1.1	1.1	0.5 g/g	1–5/HPF	1 : 320	Not performed
4	72	M	C	1.0	3.1	0.4 g/g	n/a	1 : 320	Monoclonal IgG lambda, serum
5	36	F	C	n/a	2.0	1.9 g/g	6–10/HPF	1 : 640	Not performed
6	77	F	C	2.0	2.2	6 g/g	n/a	Neg	Polyclonal IgA, serum,
7	23	F	C	0.86	0.86	4.5 g/24 h	6–9/HPF	Positive	Serum IF negative
8	77	M	C	1	1	7 g/g	n/a	Positive	Monoclonal IgM kappa, serum
9	62	M	C	1.8	1.8	n/a	n/a	n/a	Not performed