Med Cutan Ibero Lat Am. Lichen planus LP is an entity endowed with a striking polimorphysm and with a diversity of topographic localizations. In spite of the diagnostic difficulties that the combination of these factors occasionally produce, the histopathology of the lesion is tipical and diagnostic. Our presentation seems to be justified since, to the best of our knowledge, the anal localization of the disease has not been reported and it is also rare. The finding of these anal manifestation has not been casual. With the certitude that there was no reason why LP could not appear in a semimucosa so much alike that of the lips we have systematically examined the anal region of patients bearing lesions of LP elsewhere.
When bumps appear on the skin, the bumps are often shiny, firm, and reddish purple. Signs and symptoms The signs and symptoms of lichen planus depend on where it appears on the body. Skin On the skin, lichen planus often causes bumps that are shiny, firm, and reddish purple. Sometimes the bumps have tiny white lines running through them. Most people get a few bumps. Some people get many bumps, which can appear on different parts of the body.
Oral lichen planus with Wickham striae on buccal mucosa. Usatine, MD Figure 8. Usatine, MD Figure 9. Oral lichen planus with erosions on the lips, tongue, and palate. The Color Atlas of Family Medicine.
Advertisement What is lichen planus? Lichen planus is a type of rash that forms on your skin, on genitalia, or in your mouth. It is marked by purple bumps that are flat and uneven in size. The bumps may have white scales or flakes on them.