Pigmentary demarcation lines. Comparison of Negroes with Japanese.


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.

Cite this paper

@article{Selmanowitz1975PigmentaryDL, title={Pigmentary demarcation lines. Comparison of Negroes with Japanese.}, author={V J Selmanowitz and James Michael Krivo}, journal={The British journal of dermatology}, year={1975}, volume={93 4}, pages={371-7} }