Radiology of Malignant Dz of Jaws

Question 1

Malignant Signs and Symptoms

Answer 1

Displaced/loose teeth in short time

Foul smell, ulceration, indurated

Exposure of bone

Lymphadenopathy

“Numb Chin syndrome”

Question 2

Malignant Radio Features

Answer 2

Poorly defined
Non-corticated irregular margin
Non-space occupying
Irregular widening of PDL
Teeth floating in space, doesnt displace

Question 3

Leukemia

Answer 3

Only malignant follicle lesion that displaces

Question 4

Periosteal Reaction

Answer 4

Usually malignancy doesn’t cause

However, if parallel = slow lesion = infection

If right angle periosteal reaction = malignancy

Question 5

Soft tissue

Answer 5

Any lesion that has soft tissue extension/mass

Question 6

Osteosarcoma

Answer 6

Malignant tumor of bone, most common
20-40
Widening of PDL space
Periosteal bone formation!!

Question 7

Multiple Myeloma

Answer 7

Multiple punched-out round radiolucencies in skulls and jaws

Plastacytomas = very large lesion

Question 8

Lymphoma

Answer 8

Generalized osteopenia w/ loss of lamina dura
Ill-defined bone destruction
Root resorption

Question 9

Leukemia

Answer 9

Bilaterally ill-defined, patch radiolucent areas
Osteopenia
Can displace tooth follicle occlusally

Question 10

Langerhan Cell Histiocytosis

Answer 10

Punched out lesions, larger

Teeth floating in space

Question 11

Breast cancer

Answer 11

Known to have mets to jaws even after dz free for many years