Papulosquamous Disorders Types and Treatment

Papulosquamous disorders are a diverse group of skin conditions that have one thing in common: They are identified by raised, scaly, red to purple patches on the skin with well-defined borders. Papulosquamous disorders have many different causes and treatments. Some of the most common include psoriasis, lichen planus, and certain drug eruptions. In this article, we discuss complete information what is the reason for this disease and treatment.

What is Papulosquamous Disorder?

Papulosquamous disorders are not just skin diseases. It is actually a term used to describe a group of unrelated skin conditions.
These disorders are not treated in the same way; they don’t even have the same root causes. Instead, these very different and diverse skin conditions are grouped solely by their appearance.
Papulosquamous skin disorders cause papules (raised, red bumps) and plaques (an area of ​​flat, thickened skin) that are scaly or scaly. These patches may or may not itch.
However, it is not just a red, scaly rash. The defining characteristic of papulosquamous disorders is the sharp and defined border of the lesions.
It may be helpful to think of it this way: Papulosquamous disorders are not diseases in and of themselves. Instead, it is a description of a specific type of rash with a particular appearance. This rash can be caused by different skin conditions.

Kinds of Papulosqueamous Disorders:

Here are few types of Papulosquamous Disorders.

While all papulosquamous disorders have the same distinctive appearance, each has a different cause and treatment depending on the cause of the rash.

Papulosquamous disorders can look incredibly similar to each other, making diagnosis difficult in some cases. Your healthcare provider will determine what is causing your rash by examining your skin and taking a complete medical history. Other tests, such as a skin biopsy, blood tests, or skin scrapings, may also be needed to identify the cause.

It is important for your healthcare provider to check for any rash you develop so that you can get a correct diagnosis and learn how to treat it effectively.

Papulosquamous Disorder


01. Psoriasis

Psoriasis is probably the best known papulosquamous disorder. It is also the most common. Psoriasis is an autoimmune disorder that causes skin cells to build up at an abnormal rate. Plaque psoriasis is very common, but on the other hand, there are many different types of psoriasis.

Psoriasis image
This skin condition is chronic and cannot be cured. However, it can be controlled with the right medications and personal care.


02. Lichen Planus

Lichen planus causes itchy, flat, purple lesions. The rash can appear anywhere on the body, even inside the mouth. It is also caused by an autoimmune response but, unlike psoriasis, lichen planus can disappear over time.

Lichen Planus image

Until it does, it is often treated with topical corticosteroids to help relieve the itching. License planus is not contagious.

03. Parapsoriasis

Although the name sounds similar to psoriasis, parapsoriasis is a different condition, affecting mainly adult men. Like psoriasis, parapsoriasis is also characterized by pink, scaly patches on the skin that vary from 1 cm to 5 cm in diameter; however, plaques in parapsoriasis are often asymptomatic.

Parapsoriasis image

There are two types of parapsoriasis: small plaque parapsoriasis (SPP) and large plaque parapsoriasis (LPP), and LPP is considered a premalignant (potentially cancerous) dermatosis. Diagnosing parapsoriasis can be difficult, but it usually requires a skin biopsy. Treatment may include corticosteroids and phototherapy.

04. Pityriasis Rosea

Being a fairly common skin condition, not much is known about the causes of pityriasis rosea. It appears to be caused by a viral infection.

Pityriasis Rosea image
image credit: atlantaskinandaesthetics

What makes this particular papulosquamous disorder unique is the appearance of a herald patch, a circular or oval spot that usually appears on the trunk. After that, a generalized rash develops.

Pityriasis rosea goes away on its own, usually within two months. Anti-itch creams or hydrocortisone can help soothe the itch until it goes away.

05. Drug Eruptions

Skin rashes can also happen when you have a reaction to a medicine. Drug eruptions usually appear within the first two weeks after starting a new medicine. These rashes are often very itchy.

06. Secondary Syphilis

Syphilis is a sexually transmitted infection (STI) caused by the bacteria Treponema pallidum. It can cause a generalized skin rash during the second stage of infection, which occurs approximately four to 10 weeks after the initial infection.

07. Tinea Corporis (Ringworm)

The rash caused by ringworm, better known as ringworm, is quite different and is therefore generally easy to diagnose. Despite the name, a ringworm is caused by a fungus and not a worm.

Ringworm is easily treated with topical antifungal medications. Unfortunately, it is also very contagious and is easily spread by skin-to-skin contact.

08. Nummular Eczema

Nummular eczema, also known as discoid eczema, it is a specific type of eczema that causes round, coin-shaped lesions. Unlike common eczema, the lesions of nummular eczema are so different.

In this condition, skin is very itchy. Topical medications can help in order to control the rash, but once you’ve had it, you’re more likely to experience another flare-up.

09. Discoid Lupus

Discoid lupus is a form of lupus that mainly affects the skin. It is an autoimmune disease that causes the immune system to attack your skin.

With discoid lupus, a chronic, generalized inflammatory rash is common. It can be treated effectively but not cured. Treatments include topical corticosteroids and topical calcineurin inhibitors (pimecrolimus cream or tacrolimus ointment).


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