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Results of DIF findings in our study and in previous reports
| FFA (+/total) | DIF pattern | |
|---|---|---|
| Kossard, 1994 [2] | 1/3 (33%) | IgA, IgM, and IgG in CB |
| Poblet, 2006 [4] | 0/2 | na |
| Chew, 2010 [5] | 0/13 | na |
| Current study, 2017 | 13/44 (30%) 4/44 (9%) 3/44 (7%) |
Any positivity LP pattern: Ig or C3 in CB LE pattern: ≥2 Ig and C3 in epidermal or follicular BMZ |
BMZ, basal membrane zone; CB, colloid bodies; DIF, direct immunofluorescence; FFA, frontal fibrosing alopecia; Ig, immunoglobulins; na, not available.
