What are four terms to describe skin lesions?
Primary Morphology
- Macule – flat lesion less than 1 cm, without elevation or depression.
- Patch – flat lesion greater than 1 cm, without elevation or depression.
- Plaque – flat, elevated lesion, usually greater than 1 cm.
- Papule – elevated, solid lesion less than 1 cm.
- Nodule – elevated, solid lesion greater than 1 cm.
What are the 10 primary lesions?
Learn the 10 primary skin lesions, which include macule, papule, nodule, plaque, tumor, vesicle, pustule, bulla, wheal, and burrow. Skin lesions are relatively common and frequently arise due to localized skin injury. Primary skin lesions are color or texture alterations that occur at birth or develop over time.
What is dermatology morphology?
Morphology is the form or structure of an individual skin lesion. Skin lesions may be flat, elevated above the plane of the skin or depressed below the plane of the skin. They may be skin coloured or red, pink, violaceous, brown, black, grey, blue, orange, yellow.
What is the difference between papule and nodule?
Nodule: a circumscribed, elevated solid lesion with depth up to 2 cm e.g. cyst. Papule: a circumscribed, elevated solid lesion up to 1 cm in size, elevation may be accentuated with oblique lighting, e.g. Mila, acne, verrucae.
What is an Umbilicated papule?
Molluscum contagiosum virus causes characteristic skin lesions consisting of single or, more often, multiple, rounded, dome-shaped, pink, waxy papules that are 2-5 mm (rarely up to 1.5 cm in the case of a giant molluscum) in diameter. The papules, or bumps, are umbilicated and contain a caseous plug.
What is lentigo?
A lentigo is a small, sharply circumscribed, pigmented macule surrounded by normal-appearing skin. Histologic findings may include hyperplasia of the epidermis and increased pigmentation of the basal layer.
What is difference between nodule and papule?
What is bigger than a macule?
A macule is a flat lesion smaller than 1 cm and a patch is a flat lesion larger than 1 cm.
What does Umbilication mean?
Medical Definition of umbilication : a depression resembling a navel an umbilication in the center of a lesion also : the state or condition of having such depressions a tendency to umbilication.
What is giant molluscum contagiosum?
Related Pages. Molluscum contagiosum is an infection caused by a poxvirus (molluscum contagiosum virus). The result of the infection is usually a benign, mild skin disease characterized by lesions (growths) that may appear anywhere on the body.
What is a Dermatofibroma?
A cellular dermatofibroma is a noncancerous skin growth. It may look like a small, firm bump, similar to a mole. Unlike other dermatofibromas, cellular dermatofibromas often attach to your deepest layer of skin. Because they’re noncancerous, they usually don’t need treatment. Appointments 216.444.5725.
What causes Poikiloderma?
Poikiloderma of Civatte is a chronic, non-cancerous (benign) skin condition in fair-skinned adults, which is probably caused by long-term sun exposure. Poikiloderma of Civatte shows a specific pattern of color change in the skin due to sun damage to the neck and sometimes the center of the chest.