Head and Neck Flashcards
most common preventable risk factor in the head and neck CA
tobacco and alcohol
It is a second tumor detected within 6 months of the diagnosis of the initial primary lesion
synchronous neopllasm
It is a second tumor detected more than 6 months of the diagnosis of the initial primary lesion
metachronous neoplasm
What is the initial evaluation of patients with primary CA of head and neck
panendoscopy
Most common location of squamous cell CA of the lip
lower lip BCCA - upper lip
What nerve is involved when there is paresthesia of the lips
mental nerve
treatment of squamous cell cancer of the lip
T1 - T2: resection = radiation T3 - T4: surgical excision with histologic confirmation of tumor free margin and post operative radiation
Selective neck dissection
o Supraomohyoid dissection (I, II, and III) - for oral cavity malignancies o Lateral neck dissection (II, III, and IV) - for laryngeal malignancies o Posterolateral neck dissection (II,III,IV, and V) - for thyroid malignancies NOTES FROM ANATOMY: • Primary tumors within the Oral cavity and Lip metastasize to nodes in levels I, II and III • Oropharynx, Hypopharynx and Larynx to levels II, III and IV • Nasopharynx and Thyroid – level V
Tongue cancer with lingual nerve involvement causes
ipsilateral paresthesia
Tongue cancer with hypoglossal nerve involvement causes
deviation of tongue on protrussion and fasciculations
Most common location of tongue cancer
lateral and ventral surfaces
Treatment of tongue cancer
T1 - T2 - wide local excision Base of Tongue - partial glossectomy with supraomohyoid dissection (N0) or MRND (N+)
Featurs of plummer vinson syndrome
• dysphagia atrophic oral mucosa, spoon-shaped fingers with brittle nails, and chronic anemia • occurs in middle age edentulous women • esophageal web: drug induced lesion (FeSO4) • pre malignant lesion (SCCA)
Treatment of tumor of alveolus and gingiva
- minimal bone invasion - mandibular resection 2. medullary cavitiy invasion - segmental mandibulectomy
Treatment of tumors of nasopharynx
chemotherapy
Most common nasophryngeal malignancy in the pedatric age group
lymphoma
Lymphatic spread of nasopharynx
- bilateral regional 2. posterior triangle (level 5)
Lymphatic spread of oropharynx
- upper and lower cervical lymphatics (level 2, 3, 4) 2. retropharyngeal spread
Lymphatic spread of hypopharynx
- bilateral regional 2. mid and lower cervical lymphatics (level 3, 4)
Tumors of the oropharynx are radiosensitive
Tumors of the oropharynx are radiosensitive
Where does larngeal granuloma usually occur?
posterior larynx on the arytenoid mucosa
Most common cause of vocal cord paralysis
iatrogenic
Treatment of early stage glottic and supraglottic cancer
Radiation therapy
Treatment of small glottic cancer
partial laryngectomy
Treatment of supraglottic cancer without arytenoid or vocal cord extension
supraglottic laryngectomy
Treatment of advanced laryngeal tumor with extension
total laryngectomy with post op RT
Treatment of subglottic cancer
total laryngectomy
Pattern of spread from primary tumor of oral cavity and lip
I, II, III
Pattern of spread from primary tumor of oropharynx, hypopharynx and larynx
II, III, IV
Pattern of spread from primary tumor of nasopharynx and thyroid
V