Odontogenic Cysts

most common non-odontogenic cyst of the jaws

cyst associated with the root of a non-vital tooth
most common cyst of the jawbone
epithelial lining is derived from rest of Malassez

an accumulation of neutrophils at the apex of a non-vital tooth

chronic inflammation of tissue at apex of a non-vital tooth

persistance radiolucent lesion of the jawbone located at the site of a previous tooth extraction

most common developmental odontogenic cyst, associated with the crown of an unerupted tooth

cystic lining derived from the reduced enamel epithelium

well-defined unilocular radiolucency associated with the crown of an unerupted tooth (attached to the CEJ)

soft tissue counterpart of the dentigerous cyst; soft, translucent swelling of the crown of an erupting tooth
most commonly seen with permanent first molars and maxillary incisors

a cyst occurring between the maxillary lateral incisor and canine

cyst that arises instead of a tooth

**almost all are _____ _____

cyst associated with the PTCH gene mutation
most arise from the rest of the dental lamina
half are located in the posterior body and ramus of the mandible

Syndrome characterized by multiple basal cell carcinomas, ontogenic keratocysts, palmar/plantar pits, calcified falx cerebri, bifid ribs, spina bifida, frontal bossing and hypertelorism 
caused by mutations in a  tumor suppressor gene (PTCH)
occur at a younger age

A cyst with an orthokertainized lining

small, keratin-filled cysts commonly found on the alveolar ridge of infants; arise from remnants of the dental lamina 
similar to epstein pearls and bohn's nodules

soft tissue counterpart of the lateral periodontal cyst
derived from the dental lamina rests
strong predilection for the mandibular canine-premolar area (60-75%)

developmental cyst which typically arises adjacent to a tooth root and which has a distinctive histology 
75-80% are found in the mandibular lateral-canine-premolar region

polycystic variant of the lateral periodontal cyst, tend to recur more frequently than lateral periodontal cyst

Developmental cyst exhibiting glandular features
Mandible (85%) with a strong predilection for the anterior jaws

Most lesions develop in bone, but peripheral lesions also occur 
2/3 found in anterior jaws
histologically has large, esoinophilic altered epithelial cells with loss of nuclei "ghost cells"

inflammatory odontogenic cyst which forms on the buccal aspect of permanent mandibular 1st molars (at the furcation)
may be bilateral
tender swelling on the buccal aspect of the mandibular first molar with or without foul-tasting discharge or periodontal pocket

malignancy arising from the epithelial lining of an odontogenic cyst 
most primary intraosseous carcinomas appear to arise in this fashion

____ cyst is the most frequently associated with malignant transformation