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Kaposi's sarcoma (KS) is a type of cancer that can form masses on the skin, in lymph nodes, in the mouth, or in other organs. [ 4 ] [ 6 ] The skin lesions are usually painless, purple and may be flat or raised.
Skin sarcomas are tumors on the surface of or inside the dermal layers (skin). They are small in size compared to other sarcomas which can arise inside muscles, abdominal cavity, retroperineal sites, etc. [1] [2] [3] These sarcomas are rare, but potentially fatal. [4] Some types of sarcoma that can manifest on the skin include: Angiosarcoma
Micrograph_of_plaque_stage_of_Kaposi's_sarcoma.jpg (665 × 501 pixels, file size: 170 KB, MIME type: image/jpeg) This is a file from the Wikimedia Commons . Information from its description page there is shown below.
Kaposi sarcoma, a rare cancer of the cells that line blood vessels in the skin and mucous membranes, is caused by human herpesvirus 8. Kaposi sarcoma often occurs in patients with acquired immune deficiency syndrome. Kaposi sarcoma, however, has different characteristics from typical soft-tissue sarcomas and is treated differently. [8]
Moritz Kaposi (Hungarian: Kaposi Mór, pronounced [ˈkɒpoʃi ˈmoːr]; 23 October 1837 – 6 March 1902) was a physician and dermatologist from the Austro-Hungarian Empire who discovered the skin tumor that received his name (Kaposi's sarcoma).
Dermatofibrosarcoma protuberans (DFSP) [2] is a rare locally aggressive malignant cutaneous soft-tissue sarcoma. DFSP develops in the connective tissue cells in the middle layer of the skin (dermis). [3] Estimates of the overall occurrence of DFSP in the United States are 0.8 to 4.5 cases per million persons per year.
Kaposi's sarcoma-associated herpesvirus (KSHV) is the ninth known human herpesvirus.It is also called Human herpesvirus 8, or HHV-8 in short. [2] This virus causes Kaposi's sarcoma, a cancer commonly occurring in AIDS patients, [3] as well as primary effusion lymphoma, [4] HHV-8-associated multicentric Castleman's disease and KSHV inflammatory cytokine syndrome. [5]
Examples of vascular tumors include hemangiomas, hemangioendotheliomas, Kaposi's sarcomas, angiosarcomas, and hemangioblastomas. An angioma refers to any type of benign vascular tumor. [2] Some vascular tumors can be associated with serious blood-clotting disorders, making correct diagnosis critical. [3]