Article
The unknown biology of the unknown primary tumour: a literature review.
Annals of oncology : official journal of the European Society for Medical Oncology - 1 Feb 2003
van de Wouw A J, Jansen R L H, Speel E J M, Hillen H F P
Abstract excerpt
The unknown primary tumour (UPT) is an intriguing clinical phenomenon found in approximately 5% of all newly diagnosed patients with cancer. It is unclear whether UPT forms a distinct biological entity with specific genetic and phenotypic characteristics, or whether it is merely a clinical presentation of metastases in patients in whom the primary tumour cannot be detected and does not result in any visible...
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