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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.
176 Kaposi's sarcoma. 176.0 Kaposi's sarcoma skin; 176.1 Kaposi's sarcoma soft tissue; 176.2 Kaposi's sarcoma palate; 176.3 Kaposi's sarcoma gastrointestinal sites; 176.4 Kaposi's sarcoma; 176.5 Kaposi's sarcoma lymph nodes; 176.8 Kaposi's sarcoma other specified sites; 176.9 Kaposi's sarcoma unspecified site
Some cases of PEL also involve the gastrointestinal tract and lymph nodes. The disease occurs primarily in people who are immunosuppressed or test positive for HIV [12] and are also latently infected with Kaposi's sarcoma-associated herpesvirus; [13] PEL is an aggressive disease with an overall 1 year survival rate of ~30%. [13]
Lymph node metastasis is the spread of cancer cells into a lymph node.. Lymph node metastasis is different from malignant lymphoma.Lymphoma is a cancer of lymph node, rather than cancer in the lymph node, because lymphoma originates from the lymph node itself, instead of originating elsewhere (e.g., the breast or colon) and spreading to the lymph nodes.
Lymphovascular invasion, especially in carcinomas, usually precedes spread to the lymph nodes that drain the tissue in which the tumour arose. Conversely, cancers with lymph node spread (known as a lymph node metastases), usually have lymphovascular invasion. Lymph node metastases usually precede secondary tumours, i.e. distant metastases.
N1: regional lymph node metastasis present; at some sites, tumor spread to closest or small number of regional lymph nodes; N2: tumor spread to an extent between N1 and N3 (N2 is not used at all sites) N3: tumor spread to more distant or numerous regional lymph nodes (N3 is not used at all sites) M: presence of distant metastasis. M0: no ...
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