Table 4. Clinical features that help to distinguish traction alopecia (TA) of the marginal hairline from ophiasis alopecia areata (AA) and from frontal fibrosing alopecia (FFA)
|
|
TA |
AA |
FFA |
|
Follicular markings (ostia) |
Decreased (especially in late-stage) |
Retained |
Absent |
|
Color of scalp |
Flesh colored(normal) |
May be peach colored |
Pale, atrophic appearing with accentuation of veins |
|
Eyebrows |
Retained |
May be affected |
May be affected |
|
Perifollicular erythema |
May be present in early stages |
None |
Typically present |
|
Perifollicular scale |
May be present in early stages |
None |
Slight or absent |
|
Fringe sign |
Present (symmetric and bilateral) |
Broken or miniaturized hairs may mimic- but not symmetric or bilateral |
Absent |