5/6: Mixed RL Flashcards
(25 cards)
What is ossifying fibroma?
Highly cellular, fibrous tissue that contains varying amounts of mineralized tissue
Where is ossifying fibroma?
Mandible: inferior to the PM and molar and superior to the IAC
Maxilla: canine fossa and zygomatic process of maxilla
How to differentiate between ossifying fibroma and fibrous dysplasia?
Ossifying - push floor of max sinus superiorly, original shape is not kept, surrounded by a RL rim-capsule
Fibrous dysplasia - original shape of max sinus is in tact, no capsule, can be associated with simple bone cavity or cyst
ossifying fibroma
ossifying fibroma
ossifying fibroma
ossifying fibroma
Not within max sinus but pushing superiorly and medially so whats left of the max sinus doesnt have the OG shape as wed see in fibrous dysplasia so therefore its ossifying fibroma
- not resorbing everything, just moving out of the way
What is garre’s osteomyelitis?
Initiated by bacterial infection but after the infection resolves, the bone inflammation persists
garre’s osteomyelitis
- has the ring of apposition around it
garre’s osteomyelitis
garre’s osteomyelitis
yellow - apposition of bone
What is osteosarcoma?
Malignant neoplasm of osteoblasts in which osteoid is produced by malignant cells
How does osteosarcoma appear?
Poorly defined borders and no cortication
Sunray periosteal reaction
Osteosarcoma
- has the sun ray around
Osteosarcoma
What is chondrosarcoma?
Malignant tumor of mesenchymal origin that produces carilage
Chondrosarcoma
chondrosarcoma
- this is different than ossifying fibroma because it actually eats away at the bone and replaces it with cartilage rather than moving it like ossifying fibroma does
What is calcifying epithelial odontogenic tumor (CEOT) associated with?
52% association with the crown of an unerupted/impacted tooth
calcifying epithelial odontogenic tumor (CEOT)
- CEO of girly things - white ring around it
calcifying epithelial odontogenic tumor (CEOT)
calcifying epithelial odontogenic tumor (CEOT)
calcifying epithelial odontogenic tumor (CEOT)
calcifying epithelial odontogenic tumor (CEOT)
