Introduction to Surgical Oncology - Principles Of Surgical Oncology | Lecture Notes - YNetStudyHub
Principles Of Surgical Oncology

Introduction to Surgical Oncology

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This topic covers the basic principles and concepts of surgical oncology, including the role of surgery in cancer treatment, types of surgical procedures, and the multidisciplinary approach to managing cancer patients.

Introduction to Surgical Oncology – Study Notes


1. Definition & Scope

Term Meaning
Surgical Oncology A subspecialty of surgery focused on the operative management of cancer, including diagnosis, staging, curative resection, and palliative procedures.
Oncologic Principles Guidelines that govern how cancer surgery is planned and performed to maximize tumor control while preserving function and quality of life.

2. Core Objectives of Surgical Oncology

  1. Accurate Diagnosis & Staging – Obtain tissue, assess disease extent, and determine resectability.
  2. Curative Resection – Remove the primary tumor with negative margins (R0 resection).
  3. Regional Control – Address lymphatic spread (lymphadenectomy, sentinel node biopsy).
  4. Symptom Palliation – Relieve pain, obstruction, bleeding, or functional impairment.
  5. Multidisciplinary Integration – Coordinate with medical oncology, radiation oncology, pathology, radiology, and supportive‑care teams.

3. Fundamental Oncologic Surgical Principles

Principle Practical Implication
Wide Excision with Negative Margins Aim for ≥1 cm radial margin for most solid tumors; adapt to anatomic constraints (e.g., head & neck, pancreas).
En‑Bloc Resection Remove tumor together with contiguous involved structures (vessels, organ segments) to prevent tumor spillage.
Lymph Node Management Perform systematic nodal dissection or sentinel node mapping based on tumor type and stage.
Avoid Tumor Manipulation Minimize handling, use protective bags, and maintain intact specimen to reduce seeding.
Preserve Function Balance oncologic clearance with organ‑preserving techniques (e.g., sphincter‑preserving rectal surgery).
Margin Assessment Intra‑operative frozen section when feasible; postoperative pathological evaluation guides adjuvant therapy.
Multimodality Planning Schedule surgery after neoadjuvant chemo‑/radiotherapy when it improves resectability or survival.

4. Surgical Oncology Workflow

  1. Initial Evaluation

    • History, physical exam, performance status (ECOG/Karnofsky).
    • Imaging: CT, MRI, PET‑CT, ultrasound.
    • Laboratory work‑up (CBC, CMP, tumor markers).
  2. Staging

    • TNM system (Tumor size/extent, Node involvement, Metastasis).
    • Stage guides operability and need for neoadjuvant therapy.
  3. Multidisciplinary Tumor Board

    • Review imaging, pathology, patient factors.
    • Decide on surgical candidacy, sequence of therapies, and need for clinical trial enrollment.
  4. Pre‑operative Planning

    • Optimize comorbidities (cardiopulmonary, diabetes, nutrition).
    • Discuss reconstruction options (flaps, prosthetics).
    • Obtain informed consent emphasizing risks, benefits, alternatives.
  5. Operative Phase

    • Patient positioning & exposure.
    • Adherence to oncologic principles (margin, lymphadenectomy).
    • Intra‑operative pathology when indicated.
  6. Post‑operative Care

    • Early mobilization, pain control, DVT prophylaxis.
    • Pathology review → margin status, nodal count, tumor grade.
    • Discuss adjuvant therapy (chemotherapy, radiation, targeted agents).
  7. Surveillance

    • Scheduled
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Unit Syllabus 8 Topics
Introduction to Surgical Oncology
Principles of Oncologic Surgery
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Surgical Techniques in Oncology
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Complications in Surgical Oncology
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Palliative Surgery in Oncology
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Surgical Oncology and Precision Medicine
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Multidisciplinary Cancer Care
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Quality of Life in Surgical Oncology
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