Latest

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

Home Diagnostics Page 12

Learn how the chromogranin A blood test is used for neuroendocrine tumors, why PPIs and benign conditions raise CgA, and how serial results are interpreted.

Chromogranin A Blood Test: Neuroendocrine Tumors, High Levels, Medication Effects, and...

Learn how circulating tumor cell blood tests detect tumor cells, what CTC counts mean, how they relate to prognosis and monitoring, and how CTCs differ from ctDNA.

Circulating Tumor Cell (CTC) Blood Test: Cancer Monitoring, Tumor Cells in...

Learn what complexed PSA measures, what high cPSA may mean, how it differs from total and free PSA, and how modern prostate-cancer risk assessment uses PSA results.

Complexed PSA Test: High Levels, Prostate Cancer Risk, and PSA Result...

Learn what CYFRA 21-1 measures, typical reference limits, causes of high levels, and how this lung cancer marker may help with NSCLC prognosis and monitoring.

CYFRA 21-1 Blood Test: Lung Cancer Marker, High Levels, and Disease...

Learn what the DCP/PIVKA-II blood test measures, why levels rise, how vitamin K affects results, and how DCP supports HCC risk assessment and treatment monitoring.

Des-Gamma-Carboxy Prothrombin (DCP) Test: Liver Cancer Marker, High Levels, and HCC...

Learn how the free PSA test and percent free PSA help refine prostate cancer risk, what common percentage ranges mean, what affects results, and when follow-up is needed.

Free PSA Test: Percent Free PSA, Prostate Cancer Risk, and PSA...

Understand what a gastrin blood test measures, why gastrin can be high, how gastrinoma and Zollinger-Ellison syndrome are diagnosed, and how PPIs affect results.

Gastrin Blood Test: Gastrinoma, Zollinger-Ellison Syndrome, High Levels, and Stomach Acid

Learn what an HE4 blood test measures, why HE4 can be high, how kidney function affects results, how ROMA combines HE4 and CA-125, and how the marker is monitored.

HE4 Blood Test: Ovarian Cancer Risk, High Levels, ROMA Score, and...

Learn how hCG is used as a tumor marker for germ cell tumors, what high levels can mean, how AFP and LDH fit into staging, and why serial hCG trends matter.

Human Chorionic Gonadotropin (hCG) Tumor Marker Test: Germ Cell Tumors, High...

Learn what an immunofixation blood test detects, how IgG, IgA, IgM, kappa, and lambda results are interpreted, and what a monoclonal protein may mean.

Immunofixation Blood Test: Monoclonal Protein, Immunoglobulin Type, Myeloma, and Meaning

Learn how the inhibin A tumor marker test is used for granulosa cell tumors, what high levels can mean, typical ranges, and how trends help with monitoring.

Inhibin A Tumor Marker Test: Granulosa Cell Tumors, High Levels, and...

Learn how the inhibin B tumor marker test is used for granulosa cell tumors, what high levels mean, and how serial results can help detect recurrence and monitor disease.

Inhibin B Tumor Marker Test: Granulosa Cell Tumors, High Levels, Recurrence,...

Learn what a high LDH blood test means, how cancer burden and cell damage can raise LDH, common non-cancer causes, normal ranges, and how LDH affects prognosis.

Lactate Dehydrogenase (LDH) Tumor Marker Test: High Levels, Cancer Burden, Cell...

Learn what an M protein blood test shows, how SPEP measures a monoclonal protein, what an M-spike can mean, and how results are used in multiple myeloma and MGUS.

M Protein Blood Test: Multiple Myeloma, Monoclonal Protein, SPEP, and Result...

Learn what the NSE blood test measures, why neuron-specific enolase rises in small cell lung cancer and neuroendocrine tumors, and how results are monitored.

Neuron-Specific Enolase (NSE) Blood Test: Neuroendocrine Tumors, Small Cell Lung Cancer,...

Learn how the OVA1 test combines five biomarkers into an ovarian malignancy risk score, what the 5.0 and 4.4 cutoffs mean, and when the test is used.

OVA1 Test: Ovarian Cancer Risk Assessment, Biomarker Score, and Result Meaning

Learn what a pancreatic polypeptide test measures, why fasting matters, what high PP levels can mean, and how the test fits into pancreatic neuroendocrine tumor evaluation.

Pancreatic Polypeptide Test: Pancreatic Neuroendocrine Tumors, High Levels, and Meaning

Learn how to interpret a PTH blood test with calcium, what high PTH can mean, how benign parathyroid adenomas differ from carcinoma, and what tests usually come next.

Parathyroid Hormone (PTH) Tumor Marker Test: Parathyroid Tumors, High Calcium, and...

Learn what the PIVKA-II/DCP liver cancer marker measures, what high levels can mean, how vitamin K and warfarin affect results, and how the test helps monitor HCC.

PIVKA-II Test: Liver Cancer Marker, High Levels, Vitamin K Status, and...

Pro-Gastrin-Releasing Peptide (ProGRP) Test: Small Cell Lung Cancer Marker, High Levels,...

1...111213...92 Page 12 of 92