由 erybody 於 2024-09-10 12:16:17 發表 | 累積瀏覽 57
Nodular BCC
Most common type of facial BCC.
Shiny or pearly nodule with a smooth surface.
May have central depression or ulceration, so its edges appear rolled.
Blood vessels cross its surface.
Cystic variant is soft, with jelly-like contents.
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BCC materials are commonly used for their excellent mechanical properties, such as high strength, toughness and ductility. BCC metals are widely used in structural applications, such as construction, automotive and aerospace industries.
What does BCC look like? BCCs can look like open sores, red patches, pink growths, shiny bumps, scars or growths with slightly elevated, rolled edges and/or a central indentation. At times, BCCs may ooze, crust, itch or bleed. The lesions commonly arise in sun-exposed areas of the body.
The essential immunohistochemistry panel recommended for the diagnosis and prognosis includes expression of the following markers: CK7; CK20; COX-2; TTF-1, chromogranin; synaptophysin, CD56; PSA; CA125; p53; c-erbB-2; MMP-9; and VEGF.superficial basal cell carcinoma dermoscopy
Melanomas make up a slightly smaller number of skin cancer cases than BCC or SCC, but malignant melanoma is much more aggressive and tends to spread to other parts of the body. These cancers may be fatal if they don't get early treatment.
Rosettes, i.e. groups of 4 white shiny follicular perifollicular spots, are a feature of sun damaged skin on polarised dermoscopy. On non-facial sites, actinic keratoses present with uniform pink or tan-coloured background and prominent keratin (white or yellow scale).dermatofibroma dermoscopy
Interestingly, relapse of stage I melanoma patients may be delayed for years or even decades [5]. Recurrence occurs locally (19.6%), in regional lymph nodes (29.8%) or at distant sites (50.6%), such as lung, brain and in intraabdominal or bone locations [6].
Dermoscopy also significantly increases the diagnostic accuracy of nonmelanoma skin cancer diagnosis [4]. For basal cell carcinoma (BCC) the dermoscopic diagnostic accuracy is up to 95%–99% [5–7].
Prognosis for Stage 1 Melanoma: With appropriate treatment, Stage I melanoma is highly curable. There is low risk for recurrence or metastasis. The 5-year survival rate as of 2018 for local melanoma, including Stage I, is 98.4%. Learn more about melanoma survival rates.