Fibro-osseous Lesions of the jaw

Question 1

Heterogeneous benign disorders in which normal bone is replaced by fibrous CT and mineralized products that resemble lamellar bone, woven bone or cementum. Various entities are recognized but diagnosis always requires consideration of clinical radiographic and pathologic data

Answer 1

Fibro-osseous lesions of bone

Question 2

usually arises in childhood and produces poorly circumscribed expansion of one or more bone

Maxilla and contiguous craniofacial bones are often affected

Answer 2

Fibrous Dysplasia of bone

Question 3

Benign bone neoplasm with fibro-osseous microscopic appearance

Well circumscribed lucent-opaque lesion, usually involving posterior mandible in adults, asymptomatic, expansile

May become large, recurrence uncommon

Answer 3

Ossifying (Cementifying) Fibroma

Question 4

Benign fibro-osseous bone with a propensity for rapid destructive growth and recurrence

affects mostly children, often in the maxilla

Somewhat circumscribed lucent-opaque lesion producing expansion

Answer 4

Juvenile aggressive ossifying fibroma (JAOF)

Question 5

A group of fibro-osseous lesions limited to alveolar bone

Generally asymptomatic lucent-opaque foci noted incidentally on radiographs

Focal Cemento-osseous dysplasia
Periapical cemento-osseous dysplasia
Florid cemento-osseous dysplasia

are examples

Answer 5

Cemento-osseous Dysplasia (Cemental Dysplasia)

Question 6

an isolated focus of radiodensity in alveolar bone; often encountered in alveolar ridges of MIDDLE AGED FEMALES

Answer 6

Focal cemento-osseous dysplasia

Question 7

Asymptomatic fibro-osseous condition that produces lucent-opaque lesions with a predilection for lower anterior teeth of adult BLACK FEMALES

affected teeth are usually healthy, responding normally to tests of pulp vitality

Radiographs taken at intervals usually show lucency predominating earlier, with lesions becoming progressively opaque over time

If teeth appear healthy and respond normally to pulp tests, no treatment is indicated

Answer 7

Periapical cemento-osseous dysplasia

Question 8

extensive jaw involvment with the same process as periapical cemento-osseous dysplasia

Predilection for adult black females, but multiple areas of alveolar bone are affected in addition to the lwoer anterior

Affect areas are prone to dehiscence and infection, so surgery at affected sites should be avoided

Answer 8

Florid Cemento-osseous dysplasia

Question 9

Autosomal dominant condition developing in children

produces swelling and radiolucency in multiple posterior jaw regions

frequently 2nd and 3rd molars are displaced anteriorly, chubby cheeks and upturned gaze

Answer 9

Cherubism

Question 10

A chronic, painful bone remodeling disorder affecting one or multiple bones in older adults

expansion and poor quality bone at affected sites

Rx - lucent opaque “cotton-wool” if jaws are affected involved teeth may exhibit hypercementosis

Answer 10

Paget’s Disease of Bone

Question 11

What are two complications of paget’s disease

Answer 11

Osteomyelitis and osteosarcoma