Biopsy
Taking a small piece of the suspicious tissue so a pathologist can examine it under the microscope. It is the only way to confirm a cancer diagnosis and to learn its type and markers.
Biopsies range from a fine needle drawing up cells, to a core needle removing a sliver of tissue, to surgical removal of the whole lesion; the sample is fixed, sliced, stained and read by a pathologist, and today also tested for protein markers and sequenced for mutations. Tissue is precious and finite, and a single biopsy samples one spot of a tumour that may vary from place to place and change over time, which is why repeat biopsies at progression and blood-based liquid biopsies have become important. Biopsies carry small risks (bleeding, infection, rarely tumour seeding) and some sites, such as the pancreas or brain, are hard to reach.
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not linked directly; found by shared links- IdeaRe-test the metastasis, not the old primary, before every change of treatment
Shares Immunohistochemistry (IHC), Histopathology & immunohistochemistry, Comprehensive genomic profiling, Liquid biopsy (ctDNA).
- TermIn situ
Shares Benign versus malignant, Lesion.
- TermGene expression
Shares Biomarker, Immunohistochemistry (IHC), Histopathology & immunohistochemistry.
- IdeaFund a biopsy at progression, every time, as standard care
Shares Circulating tumour DNA (ctDNA), Comprehensive genomic profiling, Liquid biopsy (ctDNA).
- ProductFoundationOne CDx / Liquid CDx
Shares Genomic profiling, Comprehensive genomic profiling, Liquid biopsy (ctDNA).
- IdeaRecord how long tissue waited before fixation in every pathology report
Shares Immunohistochemistry (IHC), Histopathology & immunohistochemistry.
- TermTumour marker
Shares Biomarker, Circulating tumour DNA (ctDNA), Liquid biopsy (ctDNA).
- IdeaDrop mandatory fresh biopsies where blood or archival tissue would do
Shares Circulating tumour DNA (ctDNA), Comprehensive genomic profiling, Liquid biopsy (ctDNA).