<prompt> Moth eaten alopecia is seenBlack dot tineaTelogen effuviumAlopecia areataSecondary syphilis  <response>: The hair loss can be moth-eaten, diffuse or both. The moth-eaten pattern is the most common type and is considered to be a pathognomonic manifestation of secondary syphilis. The alopecia, which is nonscarring, can occasionally affect hair-bearing areas other than the scalp Ref Davidson 23rd edition pg 238 