ABPTS Oncology study materials
ABPTS Oncology study resources

ABPTS Oncology key terms

ABPTS Oncology · Get comfortable with the vocabulary.

Tumor staging

A standardized system, most often the TNM format, that describes the size and local extent of a primary tumor, whether regional lymph nodes contain cancer, and whether distant metastases are present.

Related: Metastasis, Tumor grading
Tumor grading

A classification of how closely cancer cells resemble normal cells of the tissue of origin, usually reported on a scale from well differentiated to poorly differentiated, which reflects likely aggressiveness.

Related: Tumor staging, Histology
Metastasis

Spread of cancer cells from the original tumor to a distant site through blood vessels, lymph channels, or direct seeding, where a new secondary tumor grows.

Related: Tumor staging, Lymphedema
Histology

Microscopic examination of tissue to identify the type of cells present, which establishes a tissue-based cancer diagnosis and guides treatment selection.

Related: Tumor grading, Biopsy
Biopsy

Removal of a small sample of tissue for laboratory examination so that the presence, type, and characteristics of cancer can be confirmed.

Related: Histology, Tumor grading
Red flags

Signs or symptoms such as unexplained weight loss, night pain, new neurologic deficits, or a growing mass that suggest serious pathology and warrant medical referral before or instead of physical therapy.

Related: Medical referral, Screening
Screening

A brief clinical process of gathering history and symptoms to decide whether a patient's presentation is consistent with the physical therapy diagnosis or requires further medical workup.

Related: Red flags, Medical referral
Medical referral

Directing a patient back to a physician or other appropriate provider when findings fall outside the scope of physical therapy practice or suggest a condition needing medical management.

Related: Red flags, Screening
Prognosis

A prediction of the likely course and outcome of a disease, including expected survival, chance of recurrence, and anticipated functional recovery, based on disease and patient factors.

Related: Performance status, Survival rate
Survival rate

The proportion of people with a given diagnosis who are alive after a specified period, often reported as a five-year figure and used to describe population-level prognosis.

Related: Prognosis, Performance status
Performance status

A standardized rating of how well a person can carry out daily activities and self-care, used to estimate prognosis and to judge whether aggressive treatment is appropriate.

Related: Prognosis, Frailty
Modifiable risk factor

A personal behavior or exposure, such as tobacco use, obesity, or physical inactivity, that raises cancer risk and can be changed through education or intervention.

Related: Primary prevention, Cancer-related fatigue
Primary prevention

Actions taken to stop cancer from developing, such as avoiding tobacco, maintaining a healthy weight, exercising, limiting alcohol, and receiving recommended vaccinations.

Related: Modifiable risk factor, Secondary prevention
Secondary prevention

Early detection of cancer through screening tests and prompt follow-up so that disease is found and treated at a more curable stage.

Related: Primary prevention, Screening
Chemotherapy

Use of cytotoxic drugs that act on dividing cells throughout the body to kill cancer cells, often producing systemic side effects such as fatigue, neuropathy, and lowered blood counts.

Related: Chemotherapy-induced peripheral neuropathy, Cancer-related fatigue
Chemotherapy-induced peripheral neuropathy

Nerve damage from certain chemotherapy agents that causes numbness, tingling, pain, or weakness, usually starting in the hands and feet and raising fall and balance risk.

Related: Chemotherapy, Sensory loss
Radiation therapy

Delivery of targeted high-energy radiation to shrink or destroy tumor tissue, which can cause local skin reactions, fibrosis, and fatigue in the treated region.

Related: Fibrosis, Cancer-related fatigue
Lymphedema

Swelling caused by accumulation of lymph fluid when lymph nodes or vessels are removed or damaged by surgery or radiation, most often affecting an arm or leg.

Related: Axillary lymph node dissection, Sentinel lymph node biopsy
Sentinel lymph node biopsy

Removal and testing of the first lymph node or nodes that drain a tumor to determine whether cancer has begun to spread through the lymphatic system.

Related: Axillary lymph node dissection, Lymphedema
Axillary lymph node dissection

Surgical removal of many lymph nodes from the armpit to treat or stage breast cancer, which increases the risk of shoulder impairment and lymphedema.

Related: Sentinel lymph node biopsy, Lymphedema
Cancer-related fatigue

A persistent, distressing sense of tiredness related to cancer or its treatment that is not proportional to recent activity and does not resolve fully with rest.

Related: Aerobic exercise, Performance status
Cancer rehabilitation

Coordinated physical therapy and related services that help a person with cancer maintain or regain function, manage symptoms, and reduce disability across the treatment continuum.

Related: Prehabilitation, Cancer-related fatigue
Prehabilitation

Exercise, education, and conditioning delivered before planned cancer surgery or other treatment to improve baseline function and reduce postoperative complications.

Related: Cancer rehabilitation, Aerobic exercise
Aerobic exercise

Rhythmic activity using large muscle groups at moderate intensity, shown to reduce cancer-related fatigue and improve cardiovascular fitness and quality of life during and after treatment.

Related: Cancer-related fatigue, Resistance exercise
Resistance exercise

Progressive training against external load to build or preserve muscle mass and strength, important for countering treatment-related muscle loss and bone density decline.

Related: Aerobic exercise, Sarcopenia
Sarcopenia

Loss of skeletal muscle mass and strength that can result from aging, inactivity, or cancer and its treatments, contributing to weakness, falls, and reduced tolerance for therapy.

Related: Resistance exercise, Frailty
Frailty

A state of reduced physiologic reserve and increased vulnerability to stressors, common in older adults with cancer, that raises complication risk and predicts poorer outcomes.

Related: Sarcopenia, Performance status
Fibrosis

Thickening and stiffening of connective tissue that can follow surgery or radiation, restricting joint motion and soft tissue mobility in the treated area.

Related: Radiation therapy, Range of motion
Range of motion

The extent of movement available at a joint, measured actively or passively, which is commonly limited after cancer surgery or radiation and is a key examination finding.

Related: Fibrosis, Goniometry
Goniometry

Use of an instrument to measure joint angles in order to quantify range of motion and document change over the course of rehabilitation.

Related: Range of motion, Outcome measure
Outcome measure

A validated tool or test used to quantify a patient's function, symptoms, or quality of life at specific points so that progress and treatment effectiveness can be judged.

Related: Patient-reported outcome, Minimal clinically important difference
Patient-reported outcome

Information about symptoms, function, or well-being supplied directly by the patient, often through a standardized questionnaire, rather than measured by the clinician.

Related: Outcome measure, Quality of life
Minimal clinically important difference

The smallest change in an outcome score that a patient would perceive as meaningful, used to decide whether an observed improvement is clinically relevant rather than just statistically significant.

Related: Outcome measure, Patient-reported outcome
Quality of life

A person's overall sense of well-being across physical, emotional, social, and functional domains, commonly assessed as a key outcome in oncology rehabilitation research.

Related: Patient-reported outcome, Outcome measure
Evidence-based practice

Clinical decision-making that integrates the best available research evidence, the clinician's expertise, and the patient's values and preferences.

Related: Level of evidence, Outcome measure
Level of evidence

A ranking of study designs by their susceptibility to bias, from systematic reviews and randomized trials at the top to expert opinion and case reports at the bottom.

Related: Evidence-based practice, Randomized controlled trial
Randomized controlled trial

A study in which participants are assigned by chance to an intervention or comparison group, allowing stronger conclusions about whether the intervention caused the observed effect.

Related: Level of evidence, Evidence-based practice
Informed consent

A patient's voluntary agreement to examination or intervention after receiving and understanding information about purpose, risks, benefits, and alternatives, documented as appropriate.

Related: Scope of practice, Medical referral
Scope of practice

The legally and professionally defined boundaries of what a physical therapist may evaluate, diagnose, and treat, which guide decisions about managing care or referring out.

Related: Medical referral, Informed consent
Interprofessional collaboration

Working jointly with physicians, nurses, rehabilitation colleagues, and others to coordinate care, share information, and align goals for a patient with cancer.

Related: Medical referral, Scope of practice