Cancer and Oncology Overview
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Questions and Answers

What is the primary role of an oncologist?

  • To manage infectious diseases
  • To study and treat cancer and neoplasia (correct)
  • To perform laboratory tests on genetic materials
  • To conduct surgical procedures on tumors
  • Which term describes the abnormal growth of tissue that serves no purpose?

  • Mutation
  • Neoplasm (correct)
  • Metastasis
  • Tumor
  • What does the term 'differentiation' refer to in the context of neoplasia?

  • The rapid spread of cancer cells
  • The extent to which cells differ from their origin (correct)
  • The process of tumor encapsulation
  • The ability of cells to mutate
  • Which characteristic is true of benign tumors?

    <p>They are well-differentiated</p> Signup and view all the answers

    What is the process called when malignant cells spread from a primary tumor to distant sites?

    <p>Metastasis</p> Signup and view all the answers

    Which of the following is a characteristic of malignant neoplasms?

    <p>High potential for metastasis</p> Signup and view all the answers

    Oncogenes are derived from which type of original genes?

    <p>Normal growth-controlling genes</p> Signup and view all the answers

    What is referred to as agents that can initiate or promote cellular transformation?

    <p>Carcinogens</p> Signup and view all the answers

    What is a significant advantage of cryoablation therapy for prostate cancer?

    <p>It has a favorable success rate.</p> Signup and view all the answers

    What disadvantage is associated with cryosurgery for prostate cancer?

    <p>Men may experience impotence initially after the procedure.</p> Signup and view all the answers

    Which of the following describes chemosurgery?

    <p>A method using a chemical solution for skin rejuvenation.</p> Signup and view all the answers

    What is a key feature of Percutaneous Laser Disc Decompression (PLDD)?

    <p>It is a minimally invasive outpatient procedure.</p> Signup and view all the answers

    How does a chemical peel, or chemosurgery, aid in skin restoration?

    <p>By removing damaged top layers of skin to stimulate new growth.</p> Signup and view all the answers

    What is a characteristic feature of cryoablation therapy in terms of cost?

    <p>It is less than half the cost of traditional treatment.</p> Signup and view all the answers

    What is the primary purpose of PLDD?

    <p>To relieve pain caused by a herniated disc.</p> Signup and view all the answers

    Which of the following statements about the recuperation period after cryosurgery is true?

    <p>Most patients experience a short recuperation period.</p> Signup and view all the answers

    What do higher numeric grades in cancer grading typically indicate?

    <p>Poorly differentiated tumors</p> Signup and view all the answers

    Which stage in cancer staging indicates the most advanced disease?

    <p>Stage 4</p> Signup and view all the answers

    What does the 'N' in the TNM staging system refer to?

    <p>Lymph Node involvement</p> Signup and view all the answers

    What is the primary goal in the treatment of cancer patients when a malignant neoplasm is detected?

    <p>To completely remove or destroy the malignant neoplasm</p> Signup and view all the answers

    When staging a cancer, what is meant by the term 'recurrent'?

    <p>The cancer has appeared again after being in remission</p> Signup and view all the answers

    Which type of cancers does the TNM staging system primarily apply to?

    <p>Solid tumors</p> Signup and view all the answers

    What is the primary goal of surgical treatment in cancer care?

    <p>To remove the entire tumor and surrounding tissue</p> Signup and view all the answers

    Which type of cancer treatment involves the surgical removal of a piece of tissue for diagnostic purposes?

    <p>Diagnostic surgery</p> Signup and view all the answers

    Which aspect of tumor grading reflects the differentiation of tumor cells?

    <p>The degree of differentiation</p> Signup and view all the answers

    What is the purpose of the TNM staging system?

    <p>To assist in tumor staging and treatment planning</p> Signup and view all the answers

    What defines the treatment goal of palliation in cancer therapy?

    <p>Relief of symptoms associated with the disease</p> Signup and view all the answers

    Which surgical approach is used when the tumor mass is small and safely accessible?

    <p>Local excision</p> Signup and view all the answers

    What is a common approach used to reassess the treatment plan when complications develop?

    <p>Engage in open communication with the healthcare team and the patient</p> Signup and view all the answers

    What is one reason surgical removal of cancer may not be realistic?

    <p>Distant micrometastasis may be present</p> Signup and view all the answers

    Which of the following is NOT considered a primary method of cancer treatment?

    <p>Dietary supplements</p> Signup and view all the answers

    What is emphasized for successful cancer treatment besides the patient's medical intervention?

    <p>A multidisciplinary approach</p> Signup and view all the answers

    What is a common oral issue related to oncology treatments?

    <p>Sores near or around dentures</p> Signup and view all the answers

    Which symptom indicates alteration in oral mucosal membranes due to radiation?

    <p>Xerostomia</p> Signup and view all the answers

    What is a recommended action for managing skin problems during oncology treatment?

    <p>Apply mild soap with lukewarm water</p> Signup and view all the answers

    Which condition may result from the effects of radiation on bone marrow?

    <p>Thrombocytopenia</p> Signup and view all the answers

    What is an effective strategy to alleviate dry mouth during oncology treatments?

    <p>Practice good dental care</p> Signup and view all the answers

    Which of these symptoms is associated with gastrointestinal disturbances caused by radiation?

    <p>Anorexia</p> Signup and view all the answers

    Which emotional responses might a patient experience during oncology treatments?

    <p>Anxiety, depression, and grief</p> Signup and view all the answers

    What is a common indicator of alteration in skin integrity due to radiation exposure?

    <p>Erythema</p> Signup and view all the answers

    Study Notes

    Cancer and Oncology

    • Oncology is the medical branch focused on cancer study, detection, treatment, and management.
    • An oncologist specializes in neoplastic growth treatment and study.
    • CRAB is a descriptive term for cancer's crab-like invasion of healthy tissues.
    • Oncogenes are mutated normal genes that cause abnormal cell behavior.

    Terminology

    • Neo-: new
    • Plasia-: growth
    • Plasm-: substance
    • Trophy-: size
    • -oma-: tumor
    • Statis-: location
    • A-: none
    • Ana-: lack
    • Hyper-: excessive
    • Meta-: change
    • Dys-: bad, deranged

    Neoplasms and Tumors

    • A neoplasm is abnormal tissue growth serving no purpose, potentially harming the host.
    • A tumor is any neoplasm with cells capable of growth and reproduction.
    • Differentiation describes how much cells differ from their origin and maturity level.
    • Metastasis is malignant cell spread from the primary tumor to distant sites via body cavities, lymphatic, and blood circulation.
    • Mutation is an unusual genetic material change, spontaneous or induced, altering gene expression.
    • Carcinogens initiate or promote cellular transformation.

    Neoplasia Characteristics

    • Neoplasia involves uncontrolled abnormal cell growth. Types include benign, malignant, and borderline.
    • Benign neoplasms are well-differentiated, slow-growing, encapsulated, non-invasive, and non-metastatic.
    • Malignant neoplasm grading classifies tumor cells based on origin and how much they retain original tissue characteristics. Grades range from I to IV, with higher grades indicating poorly differentiated, aggressive tumors.

    TNM Staging System

    • The TNM system (Tumor, Node, Metastasis) is a globally recognized cancer staging standard.
    • It aids in treatment planning, prognosis indication, treatment result evaluation, and international data collation.
    • It's used for solid tumors; other systems are used for hematological, CNS cancers, and malignant melanoma.
    • Recurrence can be local (original location) or distant (different body part).

    Cancer Staging and Grading

    • Cancer staging uses the TNM system (T-tumor, N-node, M-metastasis) with stages 1-4.
    • Grading assesses differentiation: Grade 1 is low grade, Grade 4 is high grade.

    Cancer Treatment Objectives

    • Complete removal/destruction of malignant neoplasms early.
    • Prevent further metastasis.
    • Relieve symptoms.
    • Preserve life as long as possible.

    Treatment Goals

    • Cure: complete disease eradication.
    • Control: patient survival and containment of cancer cell growth.
    • Palliation: relief of disease-associated symptoms.
    • Open communication is crucial for reassessing treatment plans as needed.

    Common Cancer Treatments

    • Surgery (cure, control, palliation)
    • Chemotherapy
    • Radiation therapy
    • Immunotherapy
    • Bone marrow transplant

    Surgery

    • Surgical removal of the entire cancer is ideal but often unrealistic due to micrometastasis.
    • A multidisciplinary approach is necessary.
    • Post-operative rehabilitation is planned.
    • Skin and testicular cancer may be curable with early surgical intervention.

    Surgical Approaches

    • Local excision: for small masses with easily accessible margins.
    • Radical excision: removal of the primary tumor, surrounding tissue, and lymph nodes.

    Diagnostic Surgery

    • Involves biopsy (tissue excision from a suspicious growth) for malignancy analysis.

    Biopsy Methods

    • Excisional method: for easily accessible skin tumors.

    Cryosurgery (for Prostate Cancer)

    • Minimally invasive procedure with a favorable success and complication rate, short recovery, and lower cost than traditional treatment.
    • Potential disadvantages include a temporary catheter and initial impotence (treatable).

    Chemosurgery (Chemical Peels)

    • Uses chemical solutions to remove damaged skin layers. Improves skin appearance.

    Laser Spine Surgery (PLDD)

    • Minimally invasive outpatient procedure using local anesthesia to decompress herniated discs, offering quick pain relief.

    Radiation Toxicity Effects

    • Skin alterations (alopecia, erythema, desquamation).
    • Oral mucosal alterations (stomatitis, xerostomia, taste changes, decreased salivation).
    • Gastrointestinal disturbances (chest pain, dysphagia, anorexia, nausea, vomiting, diarrhea).
    • Bone marrow suppression (anemia, leucopenia, thrombocytopenia), increasing infection and bleeding risks.

    Side Effects of Cancer Treatment

    • Mouth problems (pain, sores, dry mouth).
    • Skin problems (irritation, redness, soreness, itching, darkening).
    • Loss of appetite.
    • Abdominal issues (nausea, vomiting).
    • Anxiety, depression, and grief.

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    Description

    Explore key concepts in oncology, including definitions and the terminology related to neoplasms and tumors. Learn about the roles of oncologists and the importance of understanding cancer's behavior and treatment. This quiz covers essential terms and concepts that are crucial for anyone studying or working in the field of oncology.

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