Acronyms

Question 1

CP angle masses

Answer 1

AMEN

A = acoustic schwannoma (80%)
M = meningioma (10%)
E = ependymoma (5%)
N = neuroepithelial (5%) cyst, either arachnoid or epidermoid

Question 2

Cartilage calcification/chondrocalcinosis

Answer 2

HOGWASH

H= hyperparathyroidism
O= ochronosis
G= gout
W= Wilson's disease
A= arthritis
S= pseudogout
H= haemachronatosis

Question 3

Bone without pain or periostitis

Answer 3

EFUN

E= enchondroma
F= fibrous dysphasia
U= UBC
N= nonnossifyinng fibroma

Question 4

Bladder calcification

Answer 4

SCRITT

S= schistosomiasis
C = cytotoxic/chemotherapy
R= radiation therapy
I=interstitial cystitis
T=TB
T= TCC

Question 5

Causes Bony sequestration

Answer 5

LIFE

L= lymphoma
I= infection
F= fibrosarcoma
E= eosinophilic granulomatosis

Question 6

Basilar invagination

Answer 6

PF ROACH

P= Paget's disease
F= fibrous dysphasia
R= rheumatoid & rickets
O = OI
A= achrondroplasia
C= cleidocranial dysostosis/Chiari I and II
H= hyperparathyroidism

Question 7

Acetabular Protrusion

Answer 7

PROT

P=paget’s disease
R= rheumatoid arthritis
O= osteomalacia
T= trauma

Question 8

Apical lung disease

Answer 8

CARPETS

C= CF
A= ankylosing spondylitis
R= radiation pneumonitis
P=pneumoconiosis
E= eosinophilia pneumonia
T= TB
S= sarcoidosis

Question 9

Wormian bone causes

Answer 9

PORK CHOPS

P= pyknodysostosis
O= OI
R=rickets
K=kinky hair syndrome
C=cleidocranial dysostosis
H=hypothyroidism
O=otopalatosigital syndrome
P= primary acro osteolysis
S= syndrome of downs

Question 10

Calcifying metastasis

Answer 10

BOTOM

B= breast ca
O= osteosarcoma
T= papillary thyroid cancer
O= ovarian cancer
M= mucinous adenocarcinoma, esp rectal

Question 11

Causes acro osteolysis

Answer 11

PINCH FO

P= psoriasis
I= injury eg frost bite
N= neuropathy
C= collagen vasc eg scleroderma
H= hyperparathyroidism
F= familial
O= other eg. progeria

Question 12

Bronchiectasis causes

Answer 12

CAPT KM

C= CF
A= ABPA
P= post infectious 
T= TB
K= kartagener syndrome
M= Mounier Kuhn Syndrome

Question 13

Lower lobe predominance

Answer 13

BADAS

B= bronchiectasis
A= aspiring pneumonia
D= drugs
A= asbestosis
S= scleroderma

Question 14

Congenital infections

Answer 14

TORCH

T= toxoplasmosis
O= other eg syphilis, parvovirus B19
R= rubella
C= CMV
H= herpes simplex virus

Question 15

Cerebral ring enhancing lesions

Answer 15

DR MAGIC

D= demyelination disease
R= radiation necrosis
M=mets
A= abscess
G=glioblastoma
I=infarction
C=contusion

Question 16

Cortical lesions

Answer 16

MOFOS

M=metastasis
O=osteomyelitis
F=fibrosarcoma
O= osteoid osteoma
S=stress fracture

Question 17

Corpus callosum hyperintensity

Answer 17

I MADE A PHD

I=infection tb, varicella, rotavirus
M=Marchiafava Bignami syndrome
A=AIDS encephalopathy 
D=DAI, diffuse vascular injury
E=epilepsy
A= autoimmune (haemolytic uremic syndrome)
P= PRES
H=hypoglycaemia 
D=Demyelination (MS, ADEM)

Question 18

Infantile cortical hyperostosis

Caffey Disease

Answer 18

Infection
Trauma
Hypervitaminosis A
Malignancy
Prostaglandin therapy for PDA Tx
Scurvy

Question 19

Acute consolidation

Acute GGO

Answer 19

Heap
H= haemorrhage
E= edema 
A= aspiration
P= pneumonia

Question 20

Chronic consolidation

Answer 20

BAC
COP/BOOP -organising pneumonia
Eosinophilia pneumonia

Question 21

Chronic ground glass opacity

Answer 21

BAC
Organising pneumonia
Chronic eosinophilia pneumonia
Idiopathic pneumonia
Hypersensitivity penumonitis
Alveolar proteinosis

Question 22

GGO + central distribution

Answer 22

Pulmonary edema
Alveolar haemorrhage
PJP/pCP
Alveolar proteinosis

Question 23

Peripheral GGO

Answer 23

Organising pneumonia
Chronic eosinophilia pneumonia
Atypical viral pneumonia
Pulmonary oedema

Question 24

Interlobular septal thickening

Smooth

Answer 24

Pulmonary edema
Pulmonary alveolar proteinosis
Pulmonary haemorrhage
Atypical pneumonia - pjp

Question 25

Nodular interlobular septal thickening

Answer 25

Lymphangitis carcinomatosis | Sarcoidosis

Question 26

Crazy paving | Interlobular septal thickening plus GGO

Answer 26

``` Alveolar proteinosis PJP Organising pneumonia BAC Lipoid pneumonia ARDS Pulmonary haemorrhage ```

Question 27

Causes Centrilobular pulmonary modules

Answer 27

``` HSP Hot tub lung RB-ILD Diffuse panbronchiolitis Silicosis Endobronchial tb Bronchopneumonia Atypical pneumonia ```

Question 28

Perilymphatic nodules

Answer 28

Sarcoidosis Pneumoconioses Lymphangitic carcinomatosis

Question 29

Cannon balls mets ddx

Answer 29

C REPS ``` RCC Choriocarcinoma Prostate cancer Synovial sarcoma Endometrial carcinoma ```

Question 30

Random pulmonary nodules

Answer 30

Henatogenous spread Angiocentric distribution Hematogenous mets Septic emboli Pulmonary langerhan's cell histiocytosis

Question 31

Miliary pattern

Answer 31

Disseminated tuberculosis Disseminated fungal infection Disseminated hematogenous mets

Question 32

Tree n bud nodules

Answer 32

Impacted bronchioles ``` Ddx Mycobacterium TB and typical mycobacterium Bacterial pneumonia Aspiration pneumonia Airway invasive aspergillus ```

Question 33

Single cavitary lesion

Answer 33

Infxn or ca TB Squamous cell ca Adenocarcinoma

Question 34

Multiple cavitary lesions

Answer 34

Septic emboli Vasculitis Mets - squamous cell ca and uterine carcinosarcoma

Question 35

Cystic lung disease

Answer 35

``` Lymphangioleimyomatosis - LAM Emphysema Pulmonary langerhans cell histiocytosis Diffuse cystic bronchiectasis Pneumocystis jiroveci pneumonia Lymphoid interstitial pneumonia ```

Question 36

Lower lobe fibrosis

Answer 36

IPF - idiopathic pulmonary fibrosis End stage asbestosis NSIP, fibrotic form

Question 37

Upper lobe fibrosis

Answer 37

End stage sarcoidosis Chronic hypersensitivity pneumonitis End stage silicosis

Question 38

Air crescent sign | Monad sign

Answer 38

Mycetoma ``` Aspergillosis invasive and or secondary Bronchogrnic ca Pulmonary TB Nocardiosis Rasmussen aneurysm Hydatid cyst ```

Question 39

Pneumomediastinum

Answer 39

``` Trauma Surgery Perforate boerhaave syndrome Esophageal ca Exercise Asthma Barotrauma Infection ```

Question 40

Finger in glove

Answer 40

ABPA Segmental bronchial atresia Cystic fibrosis

Question 41

CT halo sign with solid lung lesion

Answer 41

``` Angioinvasive aspergillosis Viral infection Wegener granulomatosis Kaposi sarcoma Hemorrhagic mets ```

Question 42

Vertebral T1 low end plate

Answer 42

AS Mets Infection Haemodialysis

Question 43

Echogenic fetal bowel

Answer 43

CF Trisomy 21 Infection

Question 44

Eggshell calcification LNs

Answer 44

Pneumoconiosis Sarcoidosis Post irradiation hodgkin's lymphoma

Question 45

Deviation of azygoesophageal recess

Answer 45

``` Hiatal hernia Esophageal disease Left atrial enlargement Subcarinal lymphadenopathy Bronchogenic cyst ```

Question 46

Mets to pleura

Answer 46

Lung GI GU Thymoma

Question 47

4 most common lung mets

Answer 47

Breast Renal Thyroid Lung

Question 48

BiRADS

Answer 48

``` 1=normal breast 2=benign 3=benign but uncertain malignant potential 4= suspicious 5= malignant ```

Question 49

Spontaneous pneumothorax

Answer 49

``` Ehlers Marfans Homo Alpha 1 Lch ```

Question 50

Epileptogenic rumours

Answer 50

Ganglioglioma DNET pxa Hypothalamic hamartoma

Question 51

Multiple small black dots mr/ddx micro bleeds brain

Answer 51

Cavernomas Cerebral amyloid angiopathy Hypertensive microhaemorrhages DAI

Question 52

Ddx enlarged heart

Answer 52

``` Cardiomyopathy CHF Valvular regurgitation Volume overload states Dilated cardiomyopathy Pericardial effusion Paracardiac mass ```

Question 53

Enhancing mediastinal nodes

Answer 53

RCC Thyroid ca Small cell lung ca Castlemans

Question 54

Vertebral plans

Answer 54

``` Lch Leukaemia Lymphoma Osteomyelitis Mets ```

Question 55

Chondrocalcinosis

Answer 55

Cppd Hyperparathyroidism Hemocheomatosis Wilsons

Question 56

Erosive arthropathy it

Answer 56

``` RA Gout Reactive arthritis Infection Psoriatic arthritis ```

Question 57

Sacroilitis

Answer 57

``` IBD Ankylosing spondylitis RA Psoriatic arthropathy Septic arthritis - uni OA ```

Question 58

Rugger jersey spine

Answer 58

``` Renal osteodystrophy Osteopetriosis Pager disease Mets Myelofibrosis ```

Question 59

Periosteal rxn newborn infant

Answer 59

``` Physiologic if <6months Trauma Infection PG therapy Caffeys disease ```

Question 60

Sequestering in bone long bone

Answer 60

``` Osteomyelitis Lch Osteoid osteoma Lymphoma Fibrosarcoma ```

Question 61

Multiple lytic foci

Answer 61

``` Mets Multiple myeloma Lymphoma Lch Fibrous dysphasia Chronic recurrent multi focal osteomyelitis ```

Question 62

Madelung deformity

Answer 62

``` Idiopathic Turner syndrome Skeletal dysphasia - HME, olliers, mucoplysaccharidoses Trauma Infxn ```

Question 63

Lucent metaphyseal bands

Answer 63

``` Leukaemia Rickets Osteomyelitis Scurvy Syphilis ```

Question 64

Medullary/chondroid lesion

Answer 64

Enchondroma Bone infarct Chondrosarcoma Chronic osteomyelitis

Question 65

Rice bodies

Answer 65

Synovial osteochromatosis Pigmented villonodular synovitis RA

Question 66

Expansile rib lesion child

Answer 66

``` Fibrous dysphasia Bone cyst Enchondroma Lch Ewing sarcoma Mets ```

Question 67

Posterior element lytic lesion

Answer 67

``` ABC Osteoblastoma Infxn - TB LCH Mets ```

Question 68

Multiple sclerotic foci pelvis

Answer 68

Osteopoikilosis Mets Pagets

Question 69

Epiphyseal equivalent Lucent lesion long bone

Answer 69

Chondroblastoma - kid/adolescent Giant cell Tumor - skeletal mature LCH Intraosseous ganglion cyst

Question 70

Ivory vertebrae

Answer 70

``` Osteoblastic mets Lymphoma Pagets Infxn chronic Osteosarcoma ```

Question 71

Osteoblastic lesions

Answer 71

``` Prostrate Bronchial carcinoid Medulloblastoma Neuroblastoma Breast Bladder Nasopharynx Stomach Lymphoma ```

Question 72

Permeative bone

Answer 72

``` Mets Ewings/primary Multiple myeloma Leukaemia Eosinophilic granuloma Osteomyelitis ```