Pigmentary demarcation lines
1975; Oxford University Press; Volume: 93; Issue: 4 Linguagem: Inglês
10.1111/j.1365-2133.1975.tb06510.x
ISSN1365-2133
AutoresVictor J. Selmanowitz, James M. Krivo,
Tópico(s)melanin and skin pigmentation
ResumoSUMMARY The natural pigmentary demarcation boundaries of the skin can be classified as: Group A—lines along the upper limb with variable trans-pectoral extension; Group B—lines along the lower limb; Group C—paired lines in median or paramedian course on the chest with midline abdominal extension; Group D—posteromedian demarcation; and Group E—bilaterally symmetrical, obliquely oriented hypopigmented macules on the chest. Groups A and C are the most distinct and occur in both Negroes and Japanese.
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