DEVELOPMENTAL CONDITIONS Flashcards
Clift Lip
- 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
Lip Pits
- Invaginations t commissures or near midline.
- Van der Woude syndrome = clefts + pits
Fordyce Granules
- Ectopic sebaceous glands
- benign
- no Tx needed
Leukoedema
- Whte or whitish-gray edematous lesion of buccal mucosa
- Dissipates when cheek is stretched
common
Lingual Thyroid
- Thyroid tissue mass at midline bas of tongue
- Located along embryonic path of thyroid descent
Thyroglossal Duct Cyst
-
Midline neck swelling
Located along embryonic path of thyroid descent
Geographic Tongue
- 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
Fissure Tongue
- Fold and furrows of tongue dorsum
- Melkersson-Rosenthal Syndrome = fissured tongue + granulomatous cheilitis + facial
Mels Bells Rosy Red
Angioma
Tumors composed of blood vessels or lymph vessels
Cherry Angioma
Red mole
on skin
Hemangioma
- 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
- Called a **cystic hygroma ** when occurs in the neck
rare
Exostoses / Tori
Excessive cortical bone growth
Dermoid Cyst
- 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
Brabchial Cyst
- Lateal neck swelling
- Epithelial cyst within lymph node of neck
squamous epithelium
Ortal Lymphoepithelial Cyst
- Epithelial cyst within lymphoid tissue of oral mucosa
- Palatine and lingual tonsils are common regions
Stafne Bone Defect
- Radiolucency in posterior mandible below mandibular canal
- Due to lingual concavity of jaw
can be normal anatomy
Nasopalatine Duct Cyst
- Heart-shaped radiolucency in nasopalatine canal
- Caused by cystification of canal remnants
- Tx: excision
Globulomaxillary Lesion
- Clinical term denoting any radiolucency b/w maxillary canine and lateral incisor
not diagnosis just clinical description
traumatic Bone Cyst
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
