Chiro Essentials- Radiology Solitary Lytic Lesions & AVN

Question 1

Circumscribed lesion, ground glass appearance: ribs, proximal femur

Answer 1

Fibrous Dysplasia

Question 2

Eccentric lesion in the metaphsic or diaphysis of long bone

Answer 2

Osteoblastoma

Question 3

Lesion crossing the epiphyseal plate

Answer 3

Giant Cell Tumor

Question 4

Most likely from colon, lung and breast

Answer 4

Metastasis

Question 5

Soap bubble appearance most common in long bones (distal femur)

Answer 5

Aneursymal bone cyst

Question 6

Oval subarticular (epiphyseal) lytic lesion

Answer 6

Chondroblastoma

Question 7

Corduroy cloth appearance (vertical black lines)

Answer 7

Hemangioma

Question 8

Brodie’s abscess

Answer 8

Infection

Question 9

Eccentric defect with thin rim of sclerosis >3 cm

Answer 9

Non-ossifying Fibroma

Question 10

Geographic lesion in the medullary region

Answer 10

Eosinophilic Granuloma

Question 11

Unicameral cyst- single soap bubble in long bones (proximal humerus)

Answer 11

Simple Bone Cyst

Question 12

AVN of Medial upper end of tibia

Answer 12

Blount

Question 13

AVN of Head of the femur in an ADULT

Answer 13

Chandler

Question 14

AVN of second metatarsal

Answer 14

Freiberg

Question 15

AVN of lunate

Answer 15

Kienbock

Question 16

AVN of navicular

Answer 16

Kohler

Question 17

AVN of Head of the femur in a CHILD

Answer 17

Legg-Calve-Perthe

Question 18

AVN of medial femoral epicondyle

Answer 18

Osteochondritis dessicans

Question 19

AVN of scaphoid

Answer 19

Preiser

Question 20

AVN of calcaneus

Answer 20

Sever

Question 21

Causes of AVN 
S
T
A
R
S

Answer 21

Sickle cell disease
Trauma
Alcoholism
Radiation
Steroids