Idiopathic Granulomatous Mastitis: An Autoimmune Disease?

Table 1

Distribution of ANA patterns and ENA positivity in patients with IGM.

Patient no.	Anti-nuclear antibody		Anti-extractable; nuclear antibody
	1/40	1/100	1/40	1/100
1	Cytoplasmic	—	M2	—
2	Nucleolar	Nucleolar (1/320)	—	—
3	Cytoplasmic	—	PM	—
4	—	—	—	—
5	Nucleolar and nuclear speckled	Nucleolar (1/320)	Ro-52	—
6	Nucleolar	Nucleolar	—	—
7	Nucleolar	Nucleolar	—	—
8	Nucleolar	—	—	—
9	Nucleolar	—	—	—
10	Nucleolar	—	—	—
11	Nuclear speckled	—	Ro-52	—
12	Nucleolar	—	PM	—
13	Nucleolar	—	PCNA	—
14	Nuclear speckled	—	PCNA	—
15	—	—	—	—
16	Nuclear speckled	Nuclear speckled	Ro-52	Ro-52
17	Mitotic spindle	Mitotic spindle	—	—
18	—	—	—	—
19	Nuclear speckled	Nuclear speckled	Ro-52	Ro-52
20	Mitotic spindle	Mitotic spindle	—	—
21	Nuclear speckled	Nuclear speckled	PCNA	—
22	Nuclear speckled	—	Ro-52	—
23	—	—	—	—
24	—	—	—	—
25	Nuclear speckled	—	—	—
26	Nuclear speckled	—	—	—