What is Dermnetnz?
What is Dermnetnz?
DermNet NZ is the world’s free resource and authority on all things skin. We help thousands of people make informed, evidence-based decisions on how to care for skin conditions, by providing reliable information at the click of a button.
What does polygonal mean in dermatology?
Pustule — a circumscribed lesion that contains pus. It is filled with neutrophils and may be white, or yellow. Not all pustules are infected. Bulla — a large blister. A circumscribed lesion more than 1 cm in diameter that contains liquid (clear, serous or haemorrhagic).
What are four terms to describe skin lesions?
Terminology of Skin Lesions
| Terminology Used to Describe Skin Lesions | |
|---|---|
| Macule | Flat lesion < 1 cm in diameter e.g.,freckles |
| Patch | Flat lesion > 1 cm in diameter e.g.,cafe-au-lait spot |
| Papule | Elevated lesion that is < 1 cm in diameter Palpable lesion e.g.,acne |
How do you describe dermatitis?
Dermatitis is a general term that describes a common skin irritation. It has many causes and forms and usually involves itchy, dry skin or a rash. Or it might cause the skin to blister, ooze, crust or flake off.
What does focal mean in dermatology?
What does focal mean? Focal is a word pathologists use to describe something seen in only a small part of the tissue sample examined. Focal changes can be seen when the tissue is examined by eye (this is called the gross examination) or under the microscope. The opposite of focal is diffuse.
How do you describe a rash in medical terms?
If the lesion is flat, then it will be either a macule or patch. A macule is a flat lesion smaller than 1 cm and a patch is a flat lesion larger than 1 cm. Elevated lesions are either solid or fluid-filled. Solid lesions can be described as either a papule, plaque, nodule, or wheal.
What are the 5 skin lesions?
What are the different types of primary skin lesions?
- Blisters. Blisters are skin lesions filled with a clear fluid.
- Macules. Macules are small spots that are typically brown, red, or white.
- Nodules.
- Papules.
- Pustules.
- Rashes.
- Wheals.
Which terms are used to describe the distribution of skin lesions?
The following terms are helpful in describing the distribution of skin lesions: generalized; localized; bilateral; unilateral; symmetrical; asymmetrical; sun-exposed; intertriginous. Miscellaneous: pruritus = itching pruritic = itchy erythema = redness of the skin produced by vascular congestion or increased perfusion.
What is the difference between dermatosis and dermatitis?
Dermatosis (pl Dermatoses): Any cutaneous lesion or group of lesions. A nonspecific term used to include any type of skin disease. Dermatitis (pl. Dermatitides): Inflammation of the skin. The term eczema also refers to an inflammation of the skin. The term eczema is often colloquially used to define the disease atopic dermatitis.
What are the signs and symptoms of dermal atrophy?
Dermal atrophy may give rise to a depression in the skin. Stria (plural striae) are linear, atrophic, pink, purple, or white lesions of the skin and are sometimes called “stretch marks”. 11. Sclerosis: Sclerosis refers to a circumscribed, diffuse hardening or induration in the skin.
What is the difference between suppurative dermatology and abscess?
Dermatology Terms. Scars are usually pink at first, then fade or hyperpigment over time. SUPPURATION – A type of acute INFLAMMATION characterized by infiltration of neutrophils at the microscopic level and formation of pus at the gross level. ABSCESS is special type of suppurative inflammation.
