| REVIEW ARTICLE |
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| Year : 2014 | Volume
: 1
| Issue : 1 | Page : 13-16 |
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Pigmentary demarcation lines
Nidhi Singh, Devinder Mohan Thappa
Department of Dermatology, Jawaharlal Institute of Postgraduate Medical Education and Research, Puducherry, India
Correspondence Address:
Nidhi Singh
Department of Dermatology, Jawaharlal Institute of Postgraduate Medical Education and Research, Puducherry 605 006
India
 Source of Support: None, Conflict of Interest: None  | Check |
DOI: 10.4103/2349-5847.135431
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Pigmentary demarcation lines (PDLs) are areas of an abrupt transition from hyperpigmented to hypopigmented or normal skin color. They are seen on limbs, face, and sometimes trunk. They are common in the black race. There are eight groups of PDL A to H. Facial PDL should be differentiated from melasma and postinflammatory pigmentation over the face. PDL are common in black women during pregnancy and are considered to be normal variants of pigmentation. Etiology of PDL continues to be an enigma and needs further research. PDL in pregnancy may regress spontaneously after delivery and do not require treatment. Facial PDL have a persistent course posing cosmetic concern for the patient and a challenge for dermatologist. |
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