Abstract:Pigmentary demarcation lines are physiologically abrupt transition lines from areas of deeper pigmentation to less pigmented areas. They are most often seen in African and Japanese individuals and rarely observed in Caucasians. There are eight types of pigmentary demarcation lines. The one described here, type B, is restricted to women and is associated with pregnancy in non-black patients. This type of pigmentary demarcation line occurs in the posterior aspect of the legs, extending from the perineum to the a… Show more
“…Pigmentary demarcation lines (PDL) are transition lines between the areas of darker and lighter or normal pigmentation with eight different types described (A–H). [ 6 ] Type A is an anterolateral aspect of upper arm with variable transpectoral extension and the type C is in median or paramedian vertical lines on the chest with midline abdominal extension. [ 6 ] In our subject, the coexistence of type A and C is observed.…”
Section: Discussionmentioning
confidence: 99%
“…[ 6 ] Type A is an anterolateral aspect of upper arm with variable transpectoral extension and the type C is in median or paramedian vertical lines on the chest with midline abdominal extension. [ 6 ] In our subject, the coexistence of type A and C is observed. [ 6 ] PDL is thought to coincide with the distribution of cutaneous nerve innervations.…”
Section: Discussionmentioning
confidence: 99%
“…[ 6 ] PDL is thought to coincide with the distribution of cutaneous nerve innervations. [ 6 ] Krivo proposed that these lines are related to pigmentary mosaicism. [ 7 ]…”
We report a case of woolly hair nevus with pigmentary demarcation lines and heterochromia iridis. Woolly hair nevus is a rare abnormality of the scalp hair characterized by the patch of hair, which is curlier and light colored than the rest of the scalp hair. Association of woolly hair nevus with some other ectodermal defects effecting skin and eyes has been reported before. Here, woolly hair nevus associated with demarcation lines and heterochromia iridis, to our knowledge, have not been previously reported.
“…Pigmentary demarcation lines (PDL) are transition lines between the areas of darker and lighter or normal pigmentation with eight different types described (A–H). [ 6 ] Type A is an anterolateral aspect of upper arm with variable transpectoral extension and the type C is in median or paramedian vertical lines on the chest with midline abdominal extension. [ 6 ] In our subject, the coexistence of type A and C is observed.…”
Section: Discussionmentioning
confidence: 99%
“…[ 6 ] Type A is an anterolateral aspect of upper arm with variable transpectoral extension and the type C is in median or paramedian vertical lines on the chest with midline abdominal extension. [ 6 ] In our subject, the coexistence of type A and C is observed. [ 6 ] PDL is thought to coincide with the distribution of cutaneous nerve innervations.…”
Section: Discussionmentioning
confidence: 99%
“…[ 6 ] PDL is thought to coincide with the distribution of cutaneous nerve innervations. [ 6 ] Krivo proposed that these lines are related to pigmentary mosaicism. [ 7 ]…”
We report a case of woolly hair nevus with pigmentary demarcation lines and heterochromia iridis. Woolly hair nevus is a rare abnormality of the scalp hair characterized by the patch of hair, which is curlier and light colored than the rest of the scalp hair. Association of woolly hair nevus with some other ectodermal defects effecting skin and eyes has been reported before. Here, woolly hair nevus associated with demarcation lines and heterochromia iridis, to our knowledge, have not been previously reported.
“…Since prominence of Type B PDL is more associated with pregnancy, local factors in the pelvis like compression and neurogenic inflammation of nerve roots S1 and S2 by enlarging uterus may be a significant contributing factor for Type B PDL as reported by previous authors. [ 10 ] We are postulating that sacral nerve root compression which is more common in occipitoposterior deliveries might have added to aggravation of PDL on lower limbs in our patient after delivery. PDL on the face are fairly common in the Indian population especially among the females.…”
Pigmentary demarcation lines (PDL), or Voigt-Futcher lines, are lines that mark an abrupt transition between hyperpigmented skin and normal skin. PDLs are more common in Japanese and dark-skinned individuals. Eight types have been described (A-H); Type B is located on the posteromedial aspect of the lower extremities; it is more common in women and is the one most frequently associated with pregnancy. The demarcation lines of pregnancy are of unknown etiology; they appear mainly in the last trimester and disappear spontaneously months after delivery.
We report a case of pregnancy-associated PDL with erythema without melanocytic pigmentation in a 23-week-gestational Latin primiparous woman.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.