Oropharyngeal Cancer Flashcards
What are the components of the oropharynx?
Tonsils, soft palate, base of tongue, oropharyngeal wall
How do tumors in the oropharynx typically present?
They usually present with regional lymph node involvement
What are common clinical presentations of oropharynx issues?
Sore throat, pain on swallowing, upper spinal nodal swelling, referred otalgia, squamous cell carcinoma common.
What are the methods for detecting and diagnosing oropharynx conditions?
Direct inspection, palpation, biopsy.
What specific areas are examined in oropharynx diagnosis?
Soft palate, base of tongue, epiglottis, vallecula.
Where does lymphatic drainage from the base of the tongue go?
To jugulodigastric, low cervical, and retropharyngeal nodes.
Where does lymphatic drainage from the tonsillar fossa go?
To jugulodigastric and submaxillary nodes.
Where does lymphatic drainage from the soft palate go?
To jugulodigastric, submaxillary, and spinal accessory nodes.
Where does lymphatic drainage from the pharyngeal walls go?
To retropharyngeal nodes, pharyngeal nodes, and jugulodigastric nodes.
What is the treatment for OPC using IMRT?
IMRT spares major salivary glands and oral mucosa, resulting in less trismus and xerostomia.
What is the radiation dose for T1 - T2 soft palate, tonsil, pharyngeal wall, and tongue?
66-70 Gy.
What is the radiation dose for T3 - T4 oropharyngeal and T2 base of tongue?
70-81.6 Gy.
What is the radiation dose for hyper-fractionation?
70 Gy.
What is the radiation dose for clinically negative nodes?
50-54 Gy.
What is the radiation dose with node dissection?
60 Gy.
What is the spinal cord block dose for 3D conformal EBRT?
Spinal cord block at 39.6 Gy; dose does not exceed 45 Gy.
