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Fissure is a lesion in the skin that is usually narrow but deep. [29] [33] Induration is dermal thickening causing the cutaneous surface to feel thicker and firmer. [29] Atrophy refers to a loss of skin, and can be epidermal, dermal, or subcutaneous. [30] With epidermal atrophy, the skin appears thin, translucent, and wrinkled. [29]
[19] [20] Clinically, the diagnosis of any particular skin condition is made by gathering pertinent information regarding the presenting skin lesion(s), including the location (such as arms, head, legs), symptoms (pruritus, pain), duration (acute or chronic), arrangement (solitary, generalized, annular, linear), morphology (macules, papules ...
A benign melanocytic nevus is a cutaneous condition characterised by well-circumscribed, pigmented, round or ovoid lesions, generally measuring from 2 to 6 mm in diameter. [1] A benign melanocytic nevus may feature hair or pigmentation as well.
A red or pinkish lesion stands out against pale skin, Dr. Perez points out. “But in people of color, a BCC and CSCC growth can show up as a translucent or skin-colored bump, which is less ...
Alfred Blaschko, a private practice dermatologist from Berlin, first described and drew the patterns of the lines of Blaschko in 1901. He obtained his data by studying over 140 patients with various nevoid and acquired skin diseases and transposed the visible patterns the diseases followed onto dolls and statues, then compiled the patterns onto a composite schematic of the human body.
The Fitzpatrick scale has been criticized for its Eurocentric bias and insufficient representation of global skin color diversity. [9] The scale originally was developed for classifying "white skin" in response to solar radiation, [2] and initially included only four categories focused on white skin, with "brown" and "black" skin types (V and VI) added as an afterthought.
Ecthyma gangrenosum is a type of skin lesion characterized by vesicles or blisters, which rapidly evolve into pustules and necrotic ulcers with undermined tender erythematous border. " Ecthyma " means a pus-forming infection of the skin with an ulcer, "gangrenosum" refers to the accompanying gangrene or necrosis.
In dermatology, a target lesion or bull's-eye lesion, named for its resemblance to the bull's-eye of a shooting target, is a rash with central clearing. It occurs in several diseases, as follows: Target lesions are the typical lesions of erythema multiforme, in which a vesicle is surrounded by an often hemorrhagic maculopapule. Erythema ...