Xray- BENIGN TUMORS

Question 1

Chondroblastoma

Answer 1

Rare
IN CHILDREN
Epiphyseal Tumor
oval or round and lytic
Fluffy or cotton wool

Question 2

Giant cell Tumor

Answer 2

Aggressive
Cartilage covered over 20 years old
Soap bubble and expansile
may be PAINFUL

Question 3

Osteochondroma

Answer 3

Cartilage covered osseous EXOSTOSIS from metaphysis
spontaneous or traumatic
sessile or pedunculated
NVE or bursa may develop at tip of lesion

Question 4

HME

Answer 4

Autosomal dominant development of multiple osteochondromas– can turn into chondrosarcoma

Question 5

Hemangioma

Answer 5

may be slightly expansile, quartoroy, coarse verticle trabeculae

Question 6

Chondroma

Answer 6

rare slowgrowing lesion from notochord

medullary fills with hyaline cartilage usually in SACRAL REGION

Question 7

Enchondroma

What are multiple called?

Answer 7

Geographic, lytic expansile lesion of hands.

Enchondromatosis

Multiple of those ^^^ aka Olliers
multiple usually one sided and if accompanied by soft tissue abnormalities its called mafffucci’s

Question 8

Enostosis

Answer 8

aka bone island
Dense osseous round tissue mass
osteopoikilosis if multiple small masses
(Sclerosing displasia)

Question 9

Osteoid Osteoma

Answer 9

Radiolucent nidus
surrounded by dense reactive sclerosis
pain at night relieved by asprin

Question 10

osteoblastoma

Answer 10

giant osteoid osteoma, MAY ENLARGE SPINOUS OR INVADE NEURAL ARCH.

Question 11

NOF

Answer 11

Solitary, metaphyseal eccentric oval shaped lesion, scalloped border, soap bubble appearence, lytic or hazy

Question 12

Fibrous Cortical Defect

Answer 12

Lytic metaphyseal geographic region with sclerotic border

Question 13

ABC

Answer 13

BLOOD FILLED, eccentric, metaphyseal lesion
Saccular soap bubble
May have "BLOWN OUT APPEARENCE"
or "FINGER IN BALLOON" 
may be PAINFUL

Question 14

SBC or unicameral bone cyst

Answer 14

Singular central geographic filled with CLEAR FLUID

May have FALLEN FRAGMENT SIGN

Question 15

FIBROUS DISPLASIA

Answer 15

Great imatator less than 20 years old
metaphyseal, may exhibit “RIND sign”
Cafe au lait(coast of main) or Albright syndrome in females
YOUNG YOUNG YOUNG

Question 16

Neurofibromatosis

Answer 16

Autosomal dominant, cafe au lait (coast of california)
KYPHOSCOLOSIS
POSTERIOR VERTEBRAL SCALLOPING and focal giantism

Question 17

Paget’s

Answer 17

AKA OSTEITIS DEFORMANS
thickened cortex, brim sign
bone deformity
INCREASED ALKALINE PHOS, 
WITH NORMAL CALCIUM!!!!!!!
OLDER MALES with bowing legs OLD OLD OLD