WebWhen cancer is found in one or more metastatic sites but the primary site cannot be determined, it is called a cancer of unknown primary (CUP) or an occult primary cancer. This happens in a small portion of cancers. Further tests may eventually find the primary site of some of these cancers. WebThese tests look for tumor markers, which are sometimes called cancer markers. Tumor markers are substances that are often made by cancer cells or by normal cells in response to cancer. For example, some tumor markers are proteins that certain cancer cells make in larger amounts than normal cells do.
Types of cancer of unknown primary (CUP) Cancer …
WebFeb 4, 2024 · The majority of CUP are adenocarcinomas or undifferentiated tumors; less commonly, squamous cell carcinoma, melanoma, sarcoma, and neuroendocrine tumors can also present with a primary site of origin that cannot be determined. In approximately 15% to 25% of patients, the primary site cannot be identified even at postmortem … WebMar 1, 2024 · A tumor marker is a substance that is produced by a cancer, or by the body itself because cancer is present. Tumor markers are commonly used in cancer care to … iron mohs hardness
Cancer of Unknown Primary Origin - an overview - ScienceDirect
WebTumor marker test: Tumor markers are substances released by certain cancers into the bloodstream. Examples of tumor markers include prostate-specific antigen (PSA) for prostate cancer, alpha-fetoprotein (AFP) for cancers of the liver and CA-125 for cancer of the ovary or fallopian tube. ... (CUP) is not the primary cancer and has already spread ... WebThe most valuable application of tumour markers has been in the detection of recurrence of malignant disease following treatment. Examples include: bone alkaline phosphatase - … WebSep 1, 2012 · The broad tumour type for almost all ‘true’ metastatic CUPs is carcinoma. CUP is a diagnosis of exclusion, since many studies exclude other tumour types including lymphoma, melanoma and sarcoma, as well as unusual primary rather than metastatic tumours [1, 2].Because these other cancer types nevertheless often enter the clinical … port orchard senior activity center