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15 Cards in this Set

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