Psoriasis dermatology ppt

How do dermatologists diagnose psoriasis?
Skin Biopsy
A biopsy is a test in which a pathologist examines skin cells under a microscope to determine whether psoriasis is the cause of symptoms.
Dermatologists usually perform what's known as a punch biopsy..
What is psoriasis in dermatology?
The most common type of psoriasis, plaque psoriasis causes dry, itchy, raised skin patches (plaques) covered with scales.
There may be few or many.
They usually appear on the elbows, knees, lower back and scalp.
The patches vary in color, depending on skin color..
What is psoriasis on skin?
Psoriasis is a skin condition that causes flaky patches of skin which form scales.
On brown, black and white skin the patches can look pink or red, and the scales white or silvery..
What is the definition of psoriasis?
Psoriasis is a chronic (long-lasting) disease in which the immune system becomes overactive, causing skin cells to multiply too quickly.
Patches of skin become scaly and inflamed, most often on the scalp, elbows, or knees, but other parts of the body can be affected as well..
What is the skin process of psoriasis?
Psoriasis is an immune-mediated disease, which means that your body's immune system starts overacting and causing problems.
If you have psoriasis, immune cells become active and produce molecules that set off the rapid production of skin cells.
This is why skin in people with the disease is inflamed and scaly..
Psoriasis is classified as a papulosquamous disorder and is most commonly subdivided into different categories based on histological characteristics.
Variants include plaque, pustular, guttate, and flexural psoriasis.
Each form has a dedicated ICD-10 code.
Steroid creams or ointments (topical corticosteroids) are commonly used to treat mild to moderate psoriasis in most areas of the body.
The treatment works by reducing inflammation.
This slows the production of skin cells and reduces itching.
Topical corticosteroids range in strength from mild to very strong.

What are the characteristics of psoriasis?

A characteristic feature is anatomical symmetry of plaques ( figure 1C )

If the disease is very active, lesions can occur at sites of trauma or pressure on the skin, such as under a tight waistband (known as Koebner phenomenon)

Less common forms of psoriasis include guttate, erythrodermic, and pustular psoriasis

What are the clinical phenotypes of psoriasis?

Psoriasis has different clinical phenotypes, but the most frequent and most easily recognised is chronic plaque or psoriasis vulgaris

The classic morphology is that of well demarcated, salmon-pink plaques covered in silvery scales in white skin ( figure 1A) and of grey plaques in black skin ( figure 1B )

What is the histology of psoriasis?

The histology of psoriasis includes thickening of the epidermis (acanthosis) with downward elongation of rete ridges, a thinned or absent granular layer, elongated and dilated capillaries, suprapapillary thinning, an inflammatory infiltrate of T cells in the dermis and epidermis, and sometimes clusters of neutrophils in the parakeratotic scale

Psoriasis dermatology ppt

How do dermatologists diagnose psoriasis?

What is psoriasis in dermatology?

What is psoriasis on skin?

What is the definition of psoriasis?

What is the skin process of psoriasis?

What are the characteristics of psoriasis?

What are the clinical phenotypes of psoriasis?

What is the histology of psoriasis?