Association of periorbital melanosis with pigmentary demarcation line-F

Muhammad Shahid, Kehkshan Tahir


Objective To determine the association of periorbital melanosis with pigmentary demarcation line-F.


Methods This observational study was carried out at the Department of Dermatology, Services Institute of Medical Sciences/ Services Hospital Lahore, from January 2017 to June 2017. A total of 50 patients of periorbital melanosis of any age and either sex were included. The association between periorbital melanosis (POM) and pigmentary demarcation line-F (PDL-F), if present, was determined by close inspection of the patients, histopathological and Wood’s lamp examination.


Results In 44 (88%) patients, PDL-F was observed along with POM. Histopathological examination carried out on 5 patients showed melanin pigment within dermal macrophages in both POM and PDL-F. In 9 (18%) patients, both POM and PDL-F became indiscernible on Wood’s lamp examination.


Conclusion POM and PDL-F are common chronic and same pigmentary conditions and should be considered as a single entity.



Periorbital melanosis, pigmentary demarcation lines, Wood’s lamp examination

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