Xray Pathologies Flashcards Preview

NBCE Part II/III > Xray Pathologies > Flashcards

Flashcards in Xray Pathologies Deck (35):
1

Benign Bone Tumor characteristics:

1. Encapsulated
2. Short Transition Zone
3. Geographic
4. Incidental Finding

2

Unicameral Bone Cyst

aka SBC (simple bone cyst)

CENTRALLY located!!

3

Aneurysmal Bone Cyst

aka ABC

BLOOD filled

4

Giant Cell Tumor (GCT)

Epiphyseal location
20-40
QUASI-MALIGNANT (this is ONLY a characteristic of GCT)
BBT

5

Chondroblastoma

6

Osteoid Osteoma

Night pain relieved by aspirin!!!
Radiolucent central nidus w/ severe reactive sclerosis
BBT

7

Brodies Abcess

aka Chronic Osteomyelitis

appears like Osteoid Osteoma
BBT

8

Brodies Abcess

aka Chronic Osteomyelitis

appears like Osteoid Osteoma

9

Enchondroma

MC BBT of hand
Multiple enchondromas = Ollier's Disease
w/ ST calcification = Maffucci's Syndrome

10

Enostoma

Bone island
BBT

11

Osteopoikilosis

Multiple bone islands
BBT

12

Osteopoikilosis

Multiple bone islands

13

Osteoblastoma

MC BBT neural arch

14

Fibrous Dysplasia

BBT
Monostotic Form = 70% --> THICK RIND SIGN
Polystotic Form = 30%

- Deformities: Saber Shin Tibia (bowing tibia) + Sheppard's Crook (bowing femur)
- Ground glass appearance
- !! "Cafe au lait" spots with "Coast of Maine" appearance

15

Unicameral Bone Cyst

aka SBC (simple bone cyst)

CENTRALLY located!!

16

Aneurysmal Bone Cyst

aka ABC

BLOOD filled

17

Giant Cell Tumor (GCT)

Epiphyseal location
20-40
QUASI-MALIGNANT (this is ONLY a characteristic of GCT)

18

Chondroblastoma

19

Osteoid Osteoma

Night pain relieved by aspirin!!!
Radiolucent central nidus w/ severe reactive sclerosis

20

Brodies Abcess

aka Chronic Osteomyelitis

appears like Osteoid Osteoma

21

Enchondroma

MC BBT of hand
Multiple enchondromas = Ollier's Disease
w/ ST calcification = Maffucci's Syndrome

22

Pagets

aka Osteitis Deformans

- Males >50
- Picture Frame Vertebra!!!
- Stages: Lytic or Destructive -->Mixed -->Sclerotic --> Malignant (osteosarc --> only way older person can have it)
- Bone expansion, bowing deformities, cotton wool, blades of grass, sheaves of wheat, brim sign, osteoporosis circumscripta

Labs:
1) Alkaline Phosphatase increase
2) URINARY HYDROXYPROLINE!!

23

Enostoma

Bone island

24

Osteopoikilosis

Multiple bone islands

25

Osteoblastoma

MC BBT neural arch

26

Osteoma

MC BBT skull
MC in frontal sinus seen on CALDWELL PROJECTION!!!

27

Fibrous Dysplasia

Monostotic Form = 70% --> THICK RIND SIGN
Polystotic Form = 30%

- Deformities: Saber Shin Tibia (bowing tibia) + Sheppard's Crook (bowing femur)
- Ground glass appearance
- !! "Cafe au lait" spots with "Coast of Maine" appearance

28

Neurofibromatosis

BBT
- Posterior VB scalloping
- !! "Cafe au lait" spots with "Coast of California" appearance
- Hypertension, Neurodeficits, Seizures

29

Multiple myeloma

aka Plasma Cell Sarcoma
aka Hematopoietic Disease

>50
CACHEXIA (wasting away)!!
HX of infection
MC primary malignancy of bone
"Rain Drop Skull" !!!! (punched out lesions)

LABS:
1) m spike IEP
2) Reversed Albumin/Globulin Ratio
3) Bence-Jones Proteinuria
4) elevated ESR
** Cold Bone Scan**

30

METS (lytic/blastic)

MC malignant tumor of BONE

31

Lytic METs

>40 (unex wt loss + bone pain at night)

Owl Wink / Blind Vertebra!!!
"Swiss Cheese" Skull appearance!!!
Lab: ALKALINE phosphatase !!!

32

Hodgkin's Disease

mc mets in 20-40
Ivory White Vertebra!!!
Anterior VB scalloping!!!
Reed Sternberg Cells

33

Ivory White Vertebra

1) Hodgkins
2) Blastic METs
3) Pagets

34

Blastic METS

>40
Ivory White Vertebra
Alkaline Phosphatase

35

Pagets

aka Osteitis Deformans

Males