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| Fig. 20.8 Moth-eaten alopecia. |
“Moth-eaten alopecia” is a form of noncicatricial, patterned hair loss in which there are myriad small foci of alopecia scattered over the scalp (Fig. 20-8). This pattern of alopecia is described as the classic form of alopecia seen in patients with secondary syphilis. However, other etiologies, such as alopecia areata and systemic lupus erythematosus, can result in the same pattern of hair loss. Furthermore, hair loss in syphilis can be diffuse as well as moth-eaten.
