Which are the Blaschko lines?
The Blaschko lines or the Blaschko lines are believed to represent epidermal cell migration and proliferation during the development of the fetus.
History of the Blaschko lines.
This concept was first described by the Germans. dermatologist Alfred Blaschko in 1901 at the 7th Congress of the German Dermatological Society.
These lines constitute a surface pattern that is distinguished from other morphologic skin lines and cutaneous dermatomes. They do not correspond to the nervous system or vascular roads
Which is the distribution from the Blaschko lines?
Blaschko's lines are consistently V-shaped at the top of the spine, S-shaped across the abdomen, inverted U-shaped from the breast area to the upper arm, and perpendicular down the front and back of the lower extremities.
They never cross the previous truncal middle line But run for it
These lines are invisible, but many inherited and acquired skin diseases manifest in accordance with these patterns creating the visual appearance of these lines.
Blaschko lines
Blaschko lines
Blaschko lines
What skin conditions are distributed along Blaschko's lines?
Many inherited and some acquired skin conditions are distributed along Blaschko's lines.
| Congenital skin disorders | |
|---|---|
| Dominant X-linked skin disorders |
|
| Epithelial naevi |
|
| Pigmentary disorders |
|
| Acquired skin disorders. | |
| Disorders with a polygenic background. |
|
Childhood conditions distributed along Blaschko lines in one limb
Inflammatory linear warty nevus
Striated lichen
Linear pororatosis
Adult conditions distributed along Blaschko's lines on one limb
Lichen planus
Lichen striatum / Blaschkitis
Telangiectasia confined to the left arm during pregnancy
Blaschko lines on the trunk
Epidermal nevus
ILVEN
Lichen planus
