1	Radiology Lab You must use Internet Explorer 5.5 or better to get full effects of the presentation Click on the Slide Show Icon at the bottom right of the IE browser to get a full screen presentation Each slide has a series of action settings which will activated by a Left Mouse Clicks The number of left mouse clicks needed to proceed through each slide is indicated at the bottom center of the screen Finally click on the Left Mouse Button to go to the next slide
2	Osteoporosis thin osteoid = thin bone
3	List the features of Osteoporosis Osteopenia Cortical thinning- “pencil-thin” Resorption of nonstress-bearing trabeculae Altered vertebral shape
4	Describe this film. radiolucency altered trabecular pattern wedge-shaped vertebrae, compressed vertebrae fish vertebrae Schmorls nodes Osteoporosis
5	This is: osteoporosis
6	Osteoporosis Diagnosis?
7	Diagnosis pathological compression fracture Front to back compression
8	Diagnosis? osteoporotic hip fracture
9	What is Dual Energy X-ray Absorptiometry (DEXA scan) Evaluates osteopororsis Low energy x-rays are passed through the bones to measure the mineral (calcium) content of the bones A bone density measurement will determine the bone mineral density (BMD) for the area measured and compares that result with the average BMD of young adult normals of similar sex and race at their peak BMD.
10	DEXA Report
11	This patient was in a cast disuse atrophy.
12	Reflex Sympathetic Dystrophy History of trivial trauma.
13	RSD
14	Hip pain TOH Transient Osteoporosis of the Hip hot bone scan marrow edema MRI
15	Diagnosis? Rickets Osteopenia Widened, frayed metaphysis-epiphyseal plate junction
16	Diagnosis? Osteomalacia Osteopenia Coarsened trabeculation Loosers zone
17	Diagnosis? HPT subperiosteal resorption ST calcification
18	Diagnosis? HPT- Rugger jersey spine
19	Diagnosis? HPT - Subchondral resorption wide SI joints
20	Diagnosis? HPT salt and pepper skull look at the little dots.
21	Diagnosis? Acromegaly “spade-like” distal tufts hooking osteophytes increased joint spaces (initially) widened shaft increased tissue thickness
22	Diagnosis? Acromegaly large skull large sella
23	Diagnosis? Acromegaly heel pad thickness > 23mm
24	Sickle cell anemia -undertubulation of long bones secondary to marrow hyperplasia
25	“H” vertebrae of sickle cell anemia
26	“hair on end” Thalassemia Sickle cell
27	Diagnosis? Infection bone destruction periosteal elevation
28	Describe: Infection Sequestrum Chalky, white area representing isolated dead bone.
29	Describe: Infection Involucrum “Bony collar”- chronic periosteal response.
30	Describe: Infection Brodie’s abscess Chronic osteomyelitis with reactive sclerosis
31	Diagnosis? Infection Brodies abscess
32	Diagnosis? Septic Arthritis bone and joint destruction crosses the joint space
33	This is: Teardrop distance >11 mm >2 mm difference from the opposite joint Sign of effusion
34	Describe the hip fat planes
35	Describe: Spine infection endplate destruction disc destruction pre-vertebral ST swelling
36	Describe: Paraspinal line deviation Infection
37
38	Pediatric with disc space loss infection
39	Diagnosis? TB Similar to osteomyelitis multiple levels paraspinal cold abcesses with Ca++
40	Diagnosis? TB gibbus