Exam 1 Review (part 2) Flashcards
What type of disease is hairy tongue?
Non-developmental
What are the characteristics of Hairy Tongue?
- Hypertrophy of filiform papillae
- Unknown etiology, predisposing factors:
- Drus (antibiotics, H2O2), smoking, radiation therapy
- Extrinsic staining
What is the treatment for Hairy Tongue?
- Physical debridement
- Chlorhexidine
Describe the characteristics of Varix (varicose vein), Varices.
- Age-related, non-developmental
- Superficial dilated veins
- Most common in calf, anus,
- Orally - ventral tongue
- Color blanches with pressure (diascopy)
Why would you treat varix or varices?
Only for esthetics
What is a lingual thyroid nodule?
Thyroid gland develops from the thryoglossal tract which is an endodermal invagination starting in the base of the tongue (foramen cecum)
What are the characteristics of a lingual thyroid nodule?
- Produces mass - posterior, mid-dorsal tongue
- Ma not have thyroid gland in neck
- Radioactive I given to image gland
- May treat surgically or with thyroid replacement therapy (shrinks the mass)
What can be from lymphoid tissue? (lymphocytes, immune system)
- Lingual Tonsils
- Lymphoepithelial cysts
Where can lymphoid tonsils be found on the tongue?
- More in posterior-lateral
- Posterior dorsal surface
- (bilateral symmetry)
Describe normal and hyperplastic lingual tonsils.
- Normal - asymptomatic
- Hyperplastic - often swollen and symptomatic, TREAT
What is lymphoid tissue that reacts and stimulates salivary ducts to proliferate producing a cyst or crypts around lymphoid tissue occlude?
Lymphoepithelial Cyst
Where are lymphoepithelial cysts located and how are they treated?
- Location - Ventral tongue, FOM, soft palate,
- Asymptomatic, small yellowish nodules
- Treatment - Excision
What is often seen as an asymptomatic radioluceny, often corticated, below inferior alveolar canal and from angle to midbody of the ramus?
Stafne’s Bone Cavity
What is Stafne’s Bone Cavity?
A developmental lingual mandibular salivary gland depression
What is the most common of all the developmental cysts?
Incisive canal cyst
What is the incisive canal cyst from?
- Cystic degeneration of nasopalatine ducts within the incisive canal
- Any age, often asymptomatic
What appears as a >6mm radiolucency anterior maxillary region, between roots of central incisors with vital teeth?
Incisive canal cyst - nasopalatine duct cyst
What is the variant of incisive canal cyst?
Cyst of incisive papilla (outside bone)
What is a developmental cyst resulting from entrapped epithelium when premaxilla fuses with maxilla?
Globulomaxillary Cyst
Describe the Globulomaxillary Cyst.
- Asymptomatic radiolucency between Max cuspid and laterial incisor
- Most common lucency between lateral and cuspids - lateral radicular cyst
What is a cyst from entrapped epithelium during palatal closure?
Medial Palatal Cyst
How can you identify and treat a Median Palatal Cyst?
- Radiolucency - midpalate with or without swelling
- Surgical removal
What cyst is from embryologic nasolacrimal duct producing upper lip cyst to right or left of midline?
Nasoalveolar Cyst (nasolabial cyst)
Describe the nasoalveolar cyst and what’s the treatment?
- Soft, fluctuant, elevates ala
- 3/4 females, 10% bilateral
- Surgical removal
What are cysts from thyroglossal tract and that are always in the midline?
Thryoglossal duct (tract) cyst
What is the cyst from entrapped salivary gland ducts in paraparotid lymph nodes?
Cervical lymphoepithelial Cysts
What cyst is from branchial arch and pouch development?
Branchial Cleft Cysts
What is the most common site for cervical lymphoepithelial cysts?
Md angle anterior to sternocleidomastoid muscle
Treated by surgical removal
Which cyst is often in the midline and from entrapped epithelium during surface closure?
Epidermoid and Dermoid Cysts
What’s the difference between an epidermoid and dermoid cyst?
- Epidermoid
- lined by stratified squamous epithelium (epidermis)
- Dermoid
- lined by stratefied squamous epithelium but with dermal appendages (sebaceous glands, sweat glands, hair follicles
