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Nodular basal-cell carcinoma (also known as "classic basal-cell carcinoma") accounts for 50% of all BCC. [29] It most commonly occurs on the sun-exposed areas of the head and neck. [ 30 ] : 748 [ 31 ] : 646 Histopathology shows aggregates of basaloid cells with well-defined borders, showing a peripheral palisading of cells and one or more ...
Given the causal relationship between sun exposure and AK growth, they often appear on a background of sun-damaged skin and in areas that are commonly sun-exposed, such as the face, ears, neck, scalp, chest, backs of hands, forearms, or lips. Because sun exposure is rarely limited to a small area, most people who have an AK have more than one. [10]
Actinic elastosis usually appears as thickened, dry, wrinkled skin. Several clinical variants have been recorded. One of the most readily identifiable is the thickened, deeply fissured skin seen on the back of the chronically sun-exposed neck, known as cutis rhomboidalis nuchae. [2]
Dermatoscopy may be useful in diagnosing basal cell carcinoma in addition to skin inspection. [42] There is insufficient evidence that optical coherence tomography (OCT) is useful in diagnosing melanoma or squamous cell carcinoma. OCT may have a role in diagnosing basal cell carcinoma but more data is needed to support this. [43]
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Infiltrating basal cell carcinoma, sclerosing; Basal cell carcinoma, morphoeic; Basal cell carcinoma, desmoplastic type; M8093/3 Basal cell carcinoma, fibroepithelial (C44._) Fibroepithelioma of Pinkus type; Fibroepithelial basal cell carcinoma, Pinkus type; Pinkus tumor; Fibroepithelioma, NOS; M8094/3 Basosquamous carcinoma (C44._) Mixed basal ...
Ultraviolet radiation causes sunburns and increases the risk of three types of skin cancer: melanoma, basal-cell carcinoma and squamous-cell carcinoma. [1] [2] [8] Of greatest concern is that the melanoma risk increases dose-dependently proportional to the number of a person's lifetime cumulative episodes of sunburn. [9]
In addition to cancer concerns related to tanning, she said people should also be concerned about the sun’s ability to cause wrinkles and early signs of skin aging. Sun exposure can lead to ...