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Learn how lung cancer MRD ctDNA testing detects molecular residual disease, what positive and negative results mean, how it can precede recurrence on scans, and why treatment decisions still require clinical context.

Minimal Residual Disease ctDNA Test for Lung Cancer: Recurrence Monitoring, MRD, and Tumor DNA

Learn what MSI testing means in lung cancer, how MSI-H, MSS, dMMR, and pMMR results differ, how NGS, PCR, and IHC are used, and why this rare biomarker can matter for immunotherapy and hereditary evaluation.

MSI Test for Lung Cancer: Microsatellite Instability, Mismatch Repair, and Result Meaning

Learn how Napsin A IHC supports lung adenocarcinoma diagnosis, what positive granular cytoplasmic staining means, why negative results do not exclude lung cancer, and when other tumor origins must be considered.

Napsin A IHC Test for Lung Cancer: Adenocarcinoma Marker, Tumor Origin, and Positive...

Non-Small Cell Lung Cancer Biomarker Test: Driver Mutations, PD-L1, and Molecular Profile

Learn what an NSE blood test means in small cell lung cancer, why levels can be high, how hemolysis causes false elevations, and how serial NSE trends may support treatment and recurrence monitoring.

NSE Test for Lung Cancer: Small Cell Lung Cancer Marker, High Levels, and...

Understand NTRK fusion testing in lung cancer, including tumor-agnostic meaning, RNA NGS, pan-TRK IHC, positive results, negative-result limits, and next steps.

NTRK Fusion Test for Lung Cancer: Gene Fusion, Tumor-Agnostic Marker, and Molecular Meaning

Diagnostics

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Understand SOX11 testing in mantle cell lymphoma, including positive nuclear staining, cyclin D1-negative MCL, SOX11-negative subtypes, diagnosis, and prognosis.

SOX11 Test: Mantle Cell Lymphoma Marker, Positive Staining, and Diagnostic Meaning

Understand TET2 mutation testing, including CHIP and CCUS, AML and MDS associations, variant allele frequency, cancer risk, prognosis, and appropriate follow-up.

TET2 Mutation Test: Blood Cancer, Clonal Hematopoiesis, Myeloid Neoplasms, and Mutation...

Understand TP53 mutation testing in blood cancer, including AML and MDS risk, multi-hit disease, del(17p), VAF, clonal hematopoiesis, and treatment impact.

TP53 Mutation Test for Blood Cancer: High-Risk Leukemia, Mutation Status, and...

Understand TP53 testing in CLL, including del(17p), TP53 mutations, low-VAF clones, when to repeat testing, targeted treatment choices, and modern prognosis.

TP53 Test for CLL: del17p, TP53 Mutation, Treatment Risk, and Prognosis

Understand UPEP testing for Bence Jones protein, including 24-hour urine collection, monoclonal light chains, myeloma monitoring, kidney risk, and result meaning.

Urine Protein Electrophoresis (UPEP) Test: Bence Jones Protein, Myeloma Monitoring, and...

$AFP-L3 testing measures the AFP-L3 fraction linked with hepatocellular carcinoma risk. Learn what high AFP-L3% means, common cutoffs, limitations, and next steps.$

AFP-L3 Test: Liver Cancer Risk, AFP Fraction, HCC Monitoring, and Result...

BRAF V600E testing in colon cancer helps guide prognosis, targeted therapy, and MLH1-deficient Lynch syndrome workup. Learn what positive and negative results mean.

BRAF V600E Test for Colon Cancer: Mutation Status, Prognosis, and Lynch...

BRCA1 and BRCA2 testing in pancreatic cancer can reveal hereditary risk and DNA-repair targets. Learn germline vs somatic results, VUS meaning, treatment impact, and family testing.

BRCA1 and BRCA2 Test for Pancreatic Cancer: Hereditary Risk, DNA Repair,...

CA 19-9 is the main blood marker used to monitor pancreatic cancer. Learn what high levels mean, how bile duct obstruction affects results, normal cutoffs, and follow-up steps.

CA 19-9 Test for Pancreatic Cancer: High Levels, Monitoring, and Bile...

CEA helps monitor colon cancer and may signal recurrence, but benign conditions can also raise it. Learn typical ranges, false-positive causes, surveillance use, and next steps.

CEA Test for Colon Cancer: High Levels, Monitoring, Recurrence, and Benign...

CEA can rise in pancreatic cancer but is usually a secondary marker to CA 19-9. Learn typical CEA ranges, benign causes, monitoring uses, limitations, and next steps.

CEA Test for Pancreatic Cancer: Tumor Marker Levels, Monitoring, and Result...

Cholangiocarcinoma Biomarker Panel: CA 19-9, FGFR2, IDH1, IDH2, and Molecular Profile

CLDN18.2 testing uses gastric cancer tissue to measure claudin 18.2 expression. Learn the ≥75% positivity threshold, IHC scoring, treatment meaning, and key limitations.

CLDN18.2 Test for Gastric Cancer: Claudin 18.2 Expression Score and Tumor...

A colorectal cancer biomarker panel combines KRAS, NRAS, BRAF, MSI/MMR, CEA, and expanded molecular tests to guide targeted therapy, immunotherapy, hereditary workup, and monitoring.

Colorectal Cancer Biomarker Panel: KRAS, NRAS, BRAF, MSI, CEA, and Molecular...

DCP, also called PIVKA-II, is a liver cancer biomarker that can rise in HCC or vitamin K-related conditions. Learn cutoffs, false positives, monitoring uses, and next steps.

Des-Gamma-Carboxy Prothrombin (DCP) Test: Liver Cancer Marker, HCC Monitoring, and Meaning

EBER in situ hybridization identifies EBV-associated gastric cancer. Learn what positive and negative results mean, why blood EBV tests differ, and how EBV fits with gastric biomarkers.

EBV Test for Gastric Cancer: Epstein-Barr Virus Tumor Marker and Molecular...

FGFR2 fusion testing identifies actionable rearrangements in intrahepatic cholangiocarcinoma. Learn positive-result meaning, RNA vs DNA testing, targeted therapy, and resistance.

FGFR2 Fusion Test for Cholangiocarcinoma: Gene Fusion, Positive Result, and Molecular...

Gastric Cancer Biomarker Panel: HER2, PD-L1, MSI, CLDN18.2, EBV, and Molecular...

Understand Gastrointestinal Stromal Tumor (GIST) Biomarker Panel KIT, PDGFRA, DOG1, and Tumor Diagnosis: what the test measures, how results are interpreted, treatment implications, limitations, and practical next steps.

Gastrointestinal Stromal Tumor (GIST) Biomarker Panel: KIT, PDGFRA, DOG1, and Tumor...

GI Cancer Biomarker Panel: CEA, CA 19-9, MSI, KRAS, BRAF, HER2,...

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