Surgical Oncology Glossary
100 terms total — 24 showing — Last updated 15 Sep 2026
CRM CRM
Circumferential resection margin; the closest distance between tumor and the surgical margin in circumferentially resected specimens.
segmentectomy
Surgical removal of a specific anatomical segment of an organ, typically liver or lung.
sentinel lymph node biopsy
Surgical sampling of the first lymph node that receives drainage from a primary tumor to assess cancer spread.
SLNB
Acronym for sentinel lymph node biopsy, a staging procedure to assess lymphatic spread in cancer patients.
surgical margins assessment
Systematic evaluation of tissue boundaries around a resected tumor to determine the adequacy of cancer removal.
surgical oncology fellowship
Specialized postgraduate training program in complex cancer surgery following general surgery residency.
surgical site infection prevention
Systematic approach to reduce the risk of postoperative wound infections through evidence-based interventions.
surgical staging
Intraoperative assessment of tumor extent to determine accurate cancer stage and guide treatment.
targeted therapy
Cancer treatment that targets specific molecular pathways or proteins involved in tumor growth.
TNM staging
Standardized system for classifying cancer extent based on tumor size (T), lymph node involvement (N), and distant metas...
total mesorectal excision
Standardized surgical technique for rectal cancer involving complete removal of the mesorectum within its fascial envelo...
tumor ablation
Minimally invasive technique using energy sources to destroy tumor tissue in situ.
tumor bed boost
Additional focused radiation therapy delivered to the surgical site after whole breast radiation following breast-conser...
tumor board presentation
Structured case discussion format used in multidisciplinary cancer team meetings to review patient cases and treatment r...
tumor board recommendations
Consensus treatment plans developed by multidisciplinary oncology teams for individual cancer patients.
tumor capsule
Fibrous or pseudo-capsular layer surrounding certain tumors, important for surgical planning.
tumor debulking
Surgical reduction of tumor burden when complete removal is not feasible, aimed at improving treatment response.
tumor dormancy
State where cancer cells remain viable but nonproliferative for extended periods before resuming growth.
tumor doubling time
Time required for a tumor to double in volume, used to assess growth rate and aggressiveness.
tumor heterogeneity
Variation in cellular characteristics, genetics, and behavior within a single tumor or between tumor sites.
tumor infiltrating lymphocytes
Immune cells present within tumor tissue that serve as prognostic indicators and potential therapeutic targets in oncolo...
tumor microenvironment
The cellular and molecular environment surrounding cancer cells, including immune cells, blood vessels, and supportive t...
tumor pseudocapsule
False capsule formed by compressed surrounding tissue around a tumor, not a true anatomical barrier.
tumor regression grade
Histopathological assessment quantifying tumor response to neoadjuvant therapy, ranging from complete response to no res...
tumor seeding
Inadvertent spread of malignant cells during surgical manipulation or biopsy procedures.