Neck

Question 1

Ddx for cystic lesion floor of mouth

Answer 1

Ranula (off midline)
Dermoid cyst (midline)
Thyroglossal duct cyst (midline, usu below hyoid)
Cystic mets (papillary thyroid and met SCC)

Question 2

Ddx for cystic lesion at mandible

Answer 2

2nd branchial cleft cyst (children, young adults)
Cystic mets
Masticator/submandibular abscess
Lymphatic malformation

Question 3

Locations of supraglottic laryngeal Ca

Answer 3

False cord, epiglottis, or aryepiglottic fold

Question 4

Lower margin of supraglottis

Answer 4

Ventricle

Question 5

Superior and inferior margins of subglottis

Answer 5

Superior - 1 cm below laryngeal ventricle

Inferior - inferior margin of cricoid

Question 6

Where to look with history of hoarseness

Answer 6

1) Larynx (specifically glottic cancers)

2) Along course of recurrent laryngeal nerve (can look for ipsilateral findings of vocal cord paralysis)