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51 Cards in this Set

  • Front
  • Back
Most common congential cystic lesion of the neck
thyroglossal duct cyst
70% of all congenital neck abnormalities
Most commonly in 1st decade
Cystic anterior midline neck mass
Usually at or below the level of the hyoid bone
Where does the thyroid gland develop from?
midline endodermal invagination of the foregut (foramen cecum)
Indications for operating on thyroglossal duct cyst
increasing size
risk of cyst infection
suspicious for carcinoma
Procedure for thyroglossal duct cyst
Sistrunk procedure
complete excision of cyst
central portion of hyoid bone
tissue above hyoid bone extending to base of tongue
What percentage of thyroglossal duct cysts harbor carcinoma?
1%
MC papillary carcinoma (80%)
sistrunk is adequate if not advanced
Workup of solitary neck mass
1.) H&P
2.) U/S guided FNA
3.) panendoscopy
10% will require open biopsy
history suggestive of metastatic neck mass
older age, male, history of tobacco/etoh, painless, unilateral, rapid growth, fixed location, upper aerodigestive tract symptoms
MC metastatic disease from carcinoma of unknown primary
neck
upper neck mets usually from H&N CA
lower neck lesions usually from below clavicles
Neck mass workup
CT (20% identification)
Panendoscopy 65%
MC H&N Ca from an unknown location
tonsils
Metastatic nodes in subdigastric, submandibular, and midjugular region are at high risk for?
occult tonsillar malignancies
Survival rates of H&N CA with neck mets
<50%
4-10% synchronous tumors
27% metachronous tumors (lung/eso)
Most commonly involved nodes in oral tongue cancer
jugulodigastric and jugular nodes
When is selective neck dissection indicated?
N0 neck disease
treatment of clinically positive neck involvement
MRND or RND
Role of XRT/Chemo in H&N cancers
increases stage III survival
decreases risk of local regional recurrence
external beam (teletherapy) MC - 60-65Gy
initiated 6 weeks after operation
Cisplatin + 5-FU has not been shown to increase survival or decrease locoregional failure?
Lateral aberrant thyroid is
cervical LN mets from papillary thyroid CA
How does papillary CA often present as?
thyroid nodule
Percentage of papillary cancers that is associated with LN mets
80% (don't appear to influence long term survival)
35% palpable
Treatment of papillary CA + lateral aberrant thyroid
Thyroidectomy + prophylactic central neck dissection?
Location of benign salivary glands
proportional to gland size

Parotid (65-80%)
Submandibular (10%)
Likelihood of malignancy
inversely proportional to gland size
Sublingual 70-90%
Submandibular 40%
Parotid 15-30%
MC benign salivary gland tumor
Pleomorphic adenoma (mixed)
50% of all salivary gland tumors
>80% of benign lesions
Most in parotid
2nd MC benign salivary tumor
Warthin's
10-12%
Benign tumor found almost exclusively in parotid
Warthin's
Warthin is also known as.....
papillary cystadenoma lymphomatosum
always benign
2% recurrence rate
More common in males (5:1)
10% bilateral or multifocal
Smokers 8X risk
Most common malignant salivary gland tumor
Mucoepidermoid carcinoma
15% of all salivary tumors
usually in parotid
low grade invade locally and recur in 15%
Metastatic potential, recurrence rate , and FYSR of low grade vs high grade mucoepidermoid carcinoma?
rare (vs 30%)
>90% FYSR for low grade (vs ~50%)
15% recurrence (vs 30%)
Presentation of parotid tumors
painless swelling anterior to ear that's mobile to palpation
4-6cm @ time of dx
indolent growth
Work up of parotid mass
FNA
treatment of all benign salivary neoplasms
complete excision (Enucleation-> high recurrence)
superficial vs total parotidectomy
Treatment of malignant salivary tumors
en bloc surgical excision
When is post op radiation therapy indicated?
high grade
extraglandular dz
perineural invasion
regional mets
When is temporal bone resection performed?
gross facial nerve involvement
Anterior triangle contains which groups of lymph nodes
II, III, IV
Posterior triangle contained with lymph node region?
V
Central lymph node groups are...
I, VI, VII
Submental triangle nodes
regional I
Centrally located nodes
region VI (medial to lateral borders of strap muscles)
Jugulodigastric nodes drain..
Region II drain soft palate, tonsil, base of tongue, pyriform sinus, supraglottic larynx
Middle jugular nodes drain....
Region III
Drain supraglottic larynx, inferior piriform sinus, postcricoid region
Most inferior jugular nodes...
Region IV
drain thyroid, trachea, cervical esophagus
Nasopharynx and oropharynx usually drain to
posterior triangle (region V)
Hypopharyngeal tumors drain to
anterior cervical
Efficacy of panendoscopy
bronchoscopy
rigid cervical esophagoscopy
direct laryngoscopy
detects 65% of primary tumors
Treatment for N1 or N2a
Neck dissection or XRT alone
Most important prognostic factor
nodal status
Percentage of parotid tumors that present with facial nerve paralysis
1/8
poor prog (<3ysr)
usually high grade mucoepidermoid (25% occult nodal mets)
or adenoid cystic CA
Work up and treatment of parotid tumors involving facial nerve
MRI and FNA
radical parotidectomy
nerve sacrifice with sural nerve recon
Stage I and 2 head and neck cancers
surgery or xrt
stage III or IV H&N cancers
chemoxrt or surgery; neck dissection controversial