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Positive histologic stains that aid in the diagnosis of conditions of or affecting the human integumentary system Stain Cell, material, and/or structure(s) stained Condition(s) in which stain is positive Actin-specific enolase: Infantile digital fibromatosis: AE1/AE3: Squamous cell carcinoma: Alcian blue: Lipoid proteinosis Papular mucinosis ...
It is a rare type of skin cancer, with a 2013 incidence of only 0.7 per 100,000 persons in the U.S. [56] As of 2005, roughly 2,500 new cases of MCC are diagnosed each year in the United States, [56] as compared to around 60,000 new cases of malignant melanoma and over 1 million new cases of nonmelanoma skin cancer. [57]
H&E stain. Prussian blue iron staining, highlighting the hemosiderin pigment as blue. This finding indicates mesenchymal iron overload (within Kupffer cells and/or portal macrophages) rather than parenchymal iron overload (within hepatocytes). [7] There are several methods available for diagnosing and monitoring hemosiderosis including: Serum ...
The observed survival rates at 5 and 10 years are 78.20 and 61.72%, respectively, while the relative survival rates at 5 and 10 years are 92.72 and 86.98%, respectively. [6] SGc is believed to spread through the blood and lymphatic system via three mechanisms: tumor growth, multifocal tumor proliferation and shedding of atypical epithelial ...
Skin cancer is the most common form of cancer, globally accounting for at least 40% of cancer cases. [5] [20] The most common type is nonmelanoma skin cancer, which occurs in at least 2–3 million people per year. [6] [21] This is a rough estimate; good statistics are not kept. [1]
Cutaneous squamous-cell carcinoma is the second-most common cancer of the skin (after basal-cell carcinoma, but more common than melanoma). It usually occurs in areas exposed to the sun. Sunlight exposure and immunosuppression are risk factors for SCC of the skin, with chronic sun exposure being the strongest environmental risk factor. [26]
Dermatofibrosarcoma protuberans begins as a minor firm area of skin most commonly about to 1 to 5 cm in diameter. It can resemble a bruise, birthmark, or pimple. It is a slow-growing tumor and is usually found on the torso but can occur anywhere on the body. [ 7 ]
Stage IV melanoma, in which it has metastasized, is the most deadly skin malignancy: five-year survival is 22.5%. [133] When there is distant metastasis, the cancer is generally considered incurable. The five-year survival rate is less than 10%. [150] The median survival is 6–12 months.