| 5caC | 5-carboxylcytosine |
| 5fC | 5-formylcytosine |
| 5hmC | 5-hydroxymethylcytosine |
| 5mC | 5-methylcytosine |
| AC/ADC | Adenocarcinoma |
| ALK | Anaplastic lymphoma kinase |
| AUC | Area under the receiver operating characteristic (ROC) curve |
| BAL | Bronchoalveolar lavage |
| BRAF | B-raf proto-oncogene |
| BS-Seq | Bisulfite conversion followed by sequencing |
| CEA | Carcinoembryonic antigen |
| cfDNA | Cell-free circulating DNA |
| CGH | Comparative genomic hybridization |
| ChIP | Chromatin immunoprecipitation |
| CIS | Carcinoma in situ |
| CNV | Copy number variation |
| CTC | Circulating tumor cell |
| ctDNA | Cell-free tumor DNA |
| ddPCR | Droplet digital polymerase chain reaction |
| DFS | Disease free survival |
| DNMT | DNA methyltransferase enzyme |
| dNTP | Deoxynucleotide |
| DR | Death receptor |
| EGFR | Epidermal growth factor receptor |
| ELISA | Enzyme-linked immunosorbent assay |
| ERBB2 | Erb-B2 receptor tyrosine kinase 2 |
| FHIT | Fragile histidine triad diadenosine triphosphatase |
| FISH | Fluorescence in situ hybridization |
| HER2 | Human epidermal growth factor receptor 2 |
| HNPCC | Hereditary non-polyposis colon cancer |
| HPLC | High-performance liquid chromatography |
| HUGO | Human Genome Organization |
| IHC | Immunohistochemistry |
| ISH | In situ hybridization |
| KRAS | Kirsten rat sarcoma viral oncogene |
| LDCT | Low-dose computer tomography |
| LOH | Loss of heterogeneity |
| Mb | Megabase |
| MeFISH | Methylation-specific fluorescence in situ hybridization |
| MET | Mesenchymal-epithelial transition factor |
| MLPA | Multiplex ligation-dependent probe amplification |
| MSI | Microsatellite instability |
| NA | Not available |
| NGS | Next-generation sequencing |
| NSCLC | Non-small cell lung carcinoma/Non-small cell lung cancer |
| NSE | Neuron-specific enolase |
| OS | Overall survival |
| PCR | Polymerase chain reaction |
| PI | Proximal-inflammatory |
| PP | Proximal-proliferative |
| PPV | Positive predictive value |
| PTM | Posttranslational modification |
| qPCR | Quantitative real-time polymerase chain reaction |
| RET | Rearranged during transfection |
| RISC | RNA-induced silencing complex |
| ROC | Receiver operating characteristic |
| ROS1 | C-ros oncogene 1 |
| RT-PCR | Reverse-transcription polymerase chain reaction |
| SCC | Squamous cell carcinoma/Squamous cell cancer |
| SCCA | Squamous cell carcinoma antigen |
| SCLC | Small cell lung carcinoma/Small cell lung cancer |
| SCNA | Somatic copy number alteration |
| SNP | Single nucleotide polymorphism |
| SNV | Single nucleotide variant |
| TCGA | The Cancer Genome Atlas |
| TKI | Tyrosine kinase inhibitor |
| TMB | Tumor mutation burden |
| TNM | TNM Classification of Malignant Tumors (tumor-lymph nodes-metastasis) |
| TRU | Terminal respiratory unit |
| WES | Whole-exome sequencing |
| WGS | Whole-genome sequencing |