TNM Staging System and Metastasis

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Questions and Answers

What does the 'T' stand for in the TNM classification system?

  • Treatment plan
  • Tumor size (correct)
  • Thoracic cavity involvement
  • Thyroid hormone level

What is the significance of a T1 tumor size according to the text?

  • It has a better prognosis than T2 and T3 (correct)
  • It indicates a tumor size > 4 cm
  • It is carcinoma in situ
  • It cannot be assessed

Which TNM classification denotes a very advanced local disease with a very bad prognosis?

  • T2
  • N2a
  • N0
  • T4b (correct)

In the TNM classification, what does 'NX' indicate?

<p>Nodal involvement could not be assessed (A)</p> Signup and view all the answers

In the TNM classification, what does N2c refer to?

<p>Metastases in bilateral or contralateral lymph nodes (C)</p> Signup and view all the answers

What does 'N1' signify in the TNM classification system?

<p>Metastasis in a single lymph node ≤ 3 cm in dimension (A)</p> Signup and view all the answers

What is the most common site of metastasis mentioned in the text?

<p>Lung (C)</p> Signup and view all the answers

Which TNM classification represents moderately advanced local disease invading specific structures?

<p>T4a (C)</p> Signup and view all the answers

Which stage includes tumor involvement of lymph nodes but is resectable with good prognosis?

<p>Stage II (C)</p> Signup and view all the answers

What is the determining factor in tumor prognosis and management according to the text?

<p>Metastasis (D)</p> Signup and view all the answers

In stage IVb, what condition could be present based on the text?

<p>Any T N3 M0 (C)</p> Signup and view all the answers

Which management approach is taken for extensive tumors or metastasis that are non-resectable?

<p>Surgical management of the site + Neck management + Chemo-radio therapy (B)</p> Signup and view all the answers

What is the surgical technique used for benign lesions?

<p>Enucleation and/or curettage (C)</p> Signup and view all the answers

What is the approximate percentage of patients who present with lymph node metastasis in oral cavity SCC?

<p>45% (D)</p> Signup and view all the answers

Which surgical procedure is commonly used for malignant tumors, involving the resection of bone, soft tissue, and lymph node channels?

<p>Composite resection (B)</p> Signup and view all the answers

Which type of resection involves removing the tumor without disruption of bone continuity?

<p>Marginal (segmental) resection (C)</p> Signup and view all the answers

What type of resection involves removal of involved bone such as maxillectomy or mandibulectomy?

<p>Total resection (A)</p> Signup and view all the answers

When is enucleation and/or curettage typically performed?

<p><strong>For benign lesions</strong> (A)</p> Signup and view all the answers

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