DEVELOPMENTAL CONDITIONS

Question 1

Clift Lip

Answer 1

• 1 in 1000 births
  ** Unilateral (80%) **or Bilateral (20%)
• Lack of fusion b/w medial nasal process and maxillary process

can be lip and palate or lip/lips only

Question 2

Lip Pits

Answer 2

• Invaginations t commissures or near midline.
• Van der Woude syndrome = clefts + pits

Question 3

Fordyce Granules

Answer 3

• Ectopic sebaceous glands
• benign
• no Tx needed

Question 4

Leukoedema

Answer 4

• Whte or whitish-gray edematous lesion of buccal mucosa
• Dissipates when cheek is stretched

common

Question 5

Lingual Thyroid

Answer 5

• Thyroid tissue mass at midline bas of tongue
• Located along embryonic path of thyroid descent

Question 6

Thyroglossal Duct Cyst

Answer 6

• Midline neck swelling
  Located along embryonic path of thyroid descent

Question 7

Geographic Tongue

Answer 7

• Also called benign migratory glossitis and erythema migrans
• White annular (ringed) lesions surrounding central red islands that migrate over time
• Occasionally hurt and burn
• Tx: none

Question 8

Fissure Tongue

Answer 8

• Fold and furrows of tongue dorsum
• Melkersson-Rosenthal Syndrome = fissured tongue + granulomatous cheilitis + facial

Mels Bells Rosy Red

Question 9

Angioma

Answer 9

Tumors composed of blood vessels or lymph vessels

Question 10

Cherry Angioma

Answer 10

Red mole

on skin

Question 11

Hemangioma

Answer 11

• Congenital focal proliferation of lymph vessels
• • Oral lymphangiomas are very rare, purple spots on tongue
• • Called a **cystic hygroma ** when occurs in the neck
    * Sturge-Weber Syndrome = angiomas of leptomeninges (arachnoid and pia mater) + skin aling the distribution of the trigeminal nerve

rare

Question 12

Exostoses / Tori

Answer 12

Excessive cortical bone growth

Question 13

Dermoid Cyst

Answer 13

• Mass in midline floor of mouth if above mylohyoid
• Mas in upper neck if below mylohyoid
• Contains adnexal structures like hair and sebaceous glands
• Doughy consistency

Question 14

Brabchial Cyst

Answer 14

• Lateal neck swelling
• Epithelial cyst within lymph node of neck

squamous epithelium

Question 15

Ortal Lymphoepithelial Cyst

Answer 15

• Epithelial cyst within lymphoid tissue of oral mucosa
• Palatine and lingual tonsils are common regions

Question 16

Stafne Bone Defect

Answer 16

• Radiolucency in posterior mandible below mandibular canal
• Due to lingual concavity of jaw

can be normal anatomy

Question 17

Nasopalatine Duct Cyst

Answer 17

• Heart-shaped radiolucency in nasopalatine canal
• Caused by cystification of canal remnants
• Tx: excision

Question 18

Globulomaxillary Lesion

Answer 18

• Clinical term denoting any radiolucency b/w maxillary canine and lateral incisor

not diagnosis just clinical description

Question 19

traumatic Bone Cyst

Answer 19

Also called simple bone cyst and idiopathic bone cavity
Large radiolucency scalloped around roots
No epthelial lining (dead space) in mandible of teenagers
Usually associated with jaw trauma
Tx: aspirate to diagnosis, just monitor