Pigmentary demarcation lines: A population survey

James, William D.; Carter, Jan M.; Rodman, Orlando G.

doi:10.1016/s0190-9622(87)70078-4

Cited by 49 publications

(37 citation statements)

References 11 publications

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“…3,9 In Caucasians, PDLs are more common in women. 7 Among Indians, facial PDLs were found to be more common in females, which compares well with this study. 6 The presence of PDLs was noticed by 14 subjects (5.6%) and all were females.…”

Section: Discussionsupporting

confidence: 90%

“…Type C was more common in males in the above study, which is comparable with this study. 7 In our study, Type D PDL was not seen in any patient. This has been reported to be the least common PDL, only rarely seen in the Japanese population and the least common type in a study by James et al 3,7 Pigmentary demarcation lines generally do not need treatment.…”

Section: Discussioncontrasting

confidence: 42%

“…7 In our study, Type D PDL was not seen in any patient. This has been reported to be the least common PDL, only rarely seen in the Japanese population and the least common type in a study by James et al 3,7 Pigmentary demarcation lines generally do not need treatment. However, in patients who find it cosmetically unacceptable, the various treatment modalities that have been tried include:…”

Section: Discussioncontrasting

confidence: 42%

“…Type D: This is most apparent over the posteromedial area of the spine, and is the rarest of the PDLs. 7 Type E: They are slightly hypopigmented streaks, wider bands, or lanceolate areas, and are located within a zone from the mid one-third of the clavicle to the peri-areolar skin.…”

Section: Types Of Pigmentary Demarcation Linesmentioning

confidence: 99%

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Pigmentary demarcation lines: a clinical profile of 50 subjects and report of new pattern of pigmentation observed

Antony¹,

Kumar

2018

Int J Res Dermatol

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Background: Pigmentary demarcation lines (PDL) correspond to a border of abrupt transition between the more deeply pigmented skin of the outer surfaces and the lighter inner surfaces. On the basis of their location they have been classified into eight types, type A to type H. The present study is an attempt to obtain a better understanding of the clinical types of pigmentary demarcation lines in Indians, and to report any previously undescribed patterns of pigmentation.Methods: Patients attending the Outpatient Department for various complaints were examined for the presence of pigmentary demarcation lines, and those with pigmentary demarcation lines were analysed further.Results: 50 subjects of Fitzpatrick skin types 4 and 5, with pigmentary demarcation lines were examined in detail. The various types of pigmentary demarcation lines seen were Type A (38%), Type B (14%), Type C (24%), Type F (22%), Type G (4%), Type H (4%). All types were more common in females with the exception of Type C, which was observed only in males. Type D and Type E PDL were not observed in any of the subjects screened.Conclusions: The most common type of PDL observed in our study was Type A PDL, followed by Type C PDL. The youngest subject was 2 years old, the oldest was aged 75.The majority were seen in adults; Type A and Type C PDL were the common types seen in children. A family history of PDL was present in 5 (10%) and all were females. A hitherto undescribed pigmentary demarcation line is also described along with this study.

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Section: Discussionsupporting

confidence: 90%

Section: Discussioncontrasting

confidence: 42%

Section: Discussioncontrasting

confidence: 42%

Section: Types Of Pigmentary Demarcation Linesmentioning

confidence: 99%

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Pigmentary demarcation lines: a clinical profile of 50 subjects and report of new pattern of pigmentation observed

Antony¹,

Kumar

2018

Int J Res Dermatol

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“…It was first described by Matzumoto [2]in the Japanese population as lines over the upper and lower extremities. Until now, five different types of PDL have been described (table 1), labelled alphabetically from A to E [3]. We have been observing such lines over the face and we would like to label them as type F PDLs (table 1).…”

Section: Introductionmentioning

confidence: 99%