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15 Cards in this Set
- Front
- Back
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3 Field Head and Neck Treatment
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*Bilateral Neck Fields to include the cervical lymph nodes and primary site
*Unilateral or Bilateral Supraclavicular Fields |
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Procedure for Bilateral Supraclavicular Fields
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bilateral treatment followed by a unilateral boost to the side of interest
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Methods of Dealing with Junction Shifts
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*independent jaws
*midline block to supraclavicular field *cord block to the inferior margin of the lateral fields |
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Methods of Dealing with Soft Tissue within the Junction Shift
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*independent jaws
*half-beam block *collimator rotation |
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Method of Dealing with Divergence
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rotate collimator for lateral fields until the caudal margins are parallel with the supraclavicular field
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Method of Dealing with Field Junction in Tumor Volume
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opposing AP/PA fields, but should be avoided if at all possible
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Calculation Points for Head and Neck Patients
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*CAX, preferably within tumor volume
*Spinal Cord Point *Supraclavicular Point, preferably within side of interest at a depth of 3 cm |
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Risk of Recurrence at Site of Tracheostomy
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10%
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Methods of Dealing with Potential for Tracheostomy Recurrence
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*make sure not to block from field
*e-boost of tracheostomy |
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T1 Larynx Staging
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tumor limited to vocal cords with normal cord mobility
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T2 Larynx Staging
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tumor extends to the supraglottis and/or subglottis, and/or there is impaired vocal cord mobility
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T3 Larynx Staging
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tumor limited to the larynx with vocal cord fixation
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T4 Larynx Staging
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tumor invades the thyroid cartilage and/or extends to other tissues beyond the larynx
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Prognosis for Laryngeal Cancers
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90% of true vocal cord tumors treated early can be cured with radiation alone
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Lymphatic Involvement for True Vocal Cord Tumors
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very limited, rarely spreads this way, particularly at T1 stage
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