ROS1 Fusion Test for Lung Cancer: Gene Fusion, Positive Result, and Molecular Meaning
A ROS1 fusion test looks for a rearrangement that joins the ROS1 gene to another gene and creates an abnormal growth-driving kinase. In non-small...
SCC Antigen Test for Lung Cancer: Squamous Cell Carcinoma Marker and Monitoring
The SCC antigen test is a blood test that measures squamous cell carcinoma antigen, a protein released in higher amounts by some squamous cell...
Small Cell Lung Cancer Biomarker Panel: ProGRP, NSE, DLL3, and Disease Monitoring
A small cell lung cancer (SCLC) biomarker panel may combine blood markers such as progastrin-releasing peptide (ProGRP) and neuron-specific enolase (NSE) with tumor markers...
TTF-1 IHC Test for Lung Cancer: Tumor Origin, Adenocarcinoma Marker, and Positive Staining
The TTF-1 immunohistochemistry test is a tissue stain that helps pathologists determine whether a tumor has features typical of lung adenocarcinoma or certain lung...
Tumor Mutational Burden (TMB) Test for Lung Cancer: Mutation Load, Genomic Score, and Meaning
Tumor mutational burden (TMB) is a genomic score that estimates how many acquired DNA mutations are present in a tumor, usually reported as mutations...
Blood-Based Multi-Cancer Early Detection Test: Cancer Signals, Screening, and Follow-Up
A blood-based multi-cancer early detection test, often called an MCED or MCD test, looks for biological signals that may come from one of several...
CancerSEEK Test: Multi-Cancer Blood Test, Tumor Markers, and Early Detection Research
CancerSEEK is a research multi-cancer blood test developed to detect cancer-related DNA mutations together with circulating protein tumor markers. The original assay was designed...
Cell-Free DNA Cancer Test: Tumor DNA in Blood, Mutation Detection, and Result Meaning
A cell-free DNA cancer test analyzes DNA fragments circulating in blood plasma. Most cell-free DNA, or cfDNA, comes from normal cells, especially blood-forming cells;...
Circulating Tumor Cell (CTC) Test: Tumor Cells in Blood, Cancer Monitoring, and Prognosis
A circulating tumor cell test looks for intact cancer cells that have detached from a tumor and entered the bloodstream. These circulating tumor cells,...
Circulating Tumor Cell Count Test: High Levels, Tumor Cell Burden, and Prognosis Meaning
A circulating tumor cell count test measures rare intact tumor cells found in a defined volume of blood. In selected metastatic cancers, especially breast,...
Circulating Tumor DNA (ctDNA) Test: Cancer Monitoring, Mutations, MRD, and Recurrence Risk
A circulating tumor DNA (ctDNA) test looks for fragments of DNA released by cancer cells into the bloodstream. It is a type of liquid...
ctDNA Minimal Residual Disease (MRD) Test: Recurrence Risk, Tumor DNA Monitoring, and Meaning
A ctDNA minimal residual disease (MRD) test looks for tiny amounts of tumor-derived DNA in blood after treatment has removed or destroyed all cancer...
ctDNA Mutation Panel: Tumor Mutations, Blood-Based Genomic Testing, and Resistance Markers
A ctDNA mutation panel is a blood-based genomic test that looks for cancer-related DNA alterations circulating in plasma. It is most often used in...
ctDNA Tumor Fraction Test: Cancer Burden, Blood DNA Percentage, and Result Meaning
A ctDNA tumor fraction test estimates how much of the cell-free DNA circulating in a blood sample comes from cancer cells. The result can...
EGFR T790M Liquid Biopsy Test: Lung Cancer Resistance Mutation and ctDNA Result Meaning
An EGFR T790M liquid biopsy looks for a specific resistance mutation in tumor DNA circulating in the blood of someone with non-small cell lung...
ESR1 Liquid Biopsy Test: Breast Cancer Hormone Resistance Marker and ctDNA Monitoring
An ESR1 liquid biopsy checks circulating tumor DNA (ctDNA) in blood for mutations in the gene that encodes estrogen receptor alpha. In estrogen receptor-positive,...
Exosome Cancer Test: Tumor RNA, Blood Biomarkers, and Diagnostic Research
An exosome cancer test analyzes tiny membrane-bound particles released by cells into blood or other body fluids for molecular clues associated with cancer. These...
FoundationOne Liquid CDx Test: ctDNA, Cancer Genomics, Mutation Report, and Companion Diagnostic Use
FoundationOne Liquid CDx is a blood-based comprehensive genomic profiling test used in people with solid tumors when a clinician needs information about cancer-related DNA...
Fragmentomics Cancer Blood Test: Cell-Free DNA Patterns and Early Detection Research
A fragmentomics cancer blood test looks at the physical patterns of cell-free DNA fragments in plasma rather than relying only on specific tumor mutations....
Galleri Test: Multi-Cancer Early Detection, Cancer Signal, and Result Meaning
The Galleri test is a prescription blood test designed to look for a shared cancer signal from many cancer types in people who do...