Liquenoid pitiriasis is a skin dermatosis caused by inflammation of the blood vessels, which causes the appearance of sores that mainly affect the trunk and limbs, for a few weeks, months or even years, this disease can develop in 2 different ways, which may be its acute form, called liquenoid pitiriase and acute variiform, or its chronic form , known as chronic liquenoid ptyriase or parapsoriasis gout.
This type of inflammation is rare, more common in children ages 5 to 10, although it can occur at any age, the reason for its cause is not yet known, but it appears to be related to changes in the immune system, so treatment is done with drugs that can help control these changes, such as the use of corticosteroids , antibiotics and immunomodulators, for example, prescribed by the dermatologist.
Lichenoid pitiriase can occur in two different clinical forms
Also known as Mucha-Habermann’s disease, it is the acute form of the disease, in which small rounded, drop-shaped, slightly raised and pink lesions form, which can suffer necrosis, in which cells die and then form scabs that, once recovered, can leave small depressed scars or white spots.
These lesions usually last between 6 and 8 weeks and can take months, and because this disease develops in outbreaks, it is common for lesions to occur at different stages at the same time on the skin; In addition, it is common for this acute disease to occur with symptoms such as fever, fatigue, discomfort and pain and the onset of enlarged lymph nodes.
It is also called chronic parapsoriasis in drops, and it also causes small pink, brown or reddish lesions on the skin, but they do not progress towards the formation of necrosis and scabs, but can take off.
Each injury to this dermatosis can remain active for weeks, go back over time and usually leave no scars; however, new injuries can occur in a process that can last from several months to several years.
Lichenoid ptiriasis has no cure; However, dermatologist-guided treatment can adequately control the disease and includes the use of:
More potent drugs, such as immunomodulators or chemotherapy drugs, such as methotrexate, may be used in some cases where there is no improvement with initial treatment.
The exact cause of this disease is unknown, but it is known to be associated with an alteration of the person’s immune system, so it is not contagious, this inflammatory reaction can be triggered after a certain type of infection, stress or use of certain medications.For example.
Lichenoid pitiriasis occurs due to a benign inflammatory process.However, in rare cases, there is the possibility of malignant transformation and cancer formation.Therefore, it is important that the dermatologist periodically monitors the progression of injuries, during appointments regularly scheduled by him.