(loo‵kŏ-dĕr'mă )

[leuko- + derma]

Deficiency of skin pigmentation, esp. in patches.

SEE: vitiligo.

l. acquisitum centrifugum Halo nevus.

syphilitic l.Macular depigmentation, esp. of the skin of the neck and shoulders, seen in late syphilis. SYN: collar of Venus; venereal collar; melanoleukoderma colli.