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Bubbly Lesions of the Bones FEGNOMASHIC: Fibrous Dyspaslia
Fibrous Cortical Defect

EG, Endchondroma

GCT

NOF

Osteoblastoma

Mets, Myeloma

ABC (always eccentric)

Simple bone cyst (always central)

Hyperparathyroidism, Hemophilia

Infection

Chondroblastoma
Malignant Bone Tumors by Age Up to Age 10: Ewings
OSA
Leukemia , lymphoma
Malignant Bone Tumors by Age 10-20: OSA
Ewings
Lymphoma, Leukemia
Malignant Bone Tumors by Age 20-30: OSA
Lymphoma
Ewings
MFH
Malignant Bone Tumors by Age Over 30: Myeloma
Mets
Lymphoma
Chondrosarcoma
MFH,Fibrosarcoma
OSA
Lytic Epiphyseal Lesions: TUMOR
GCT
EG
Chondroblastoma
Mets (rare)

INFECTION
Osteomyelitis, TB

SUBCHONDRAL CYST
Arthropathy (CPPD, OA, RA, hemophilia)

Intraosseous ganglion
Sclerotic METS: Prostate
Breast
Hodgkins

Other Primaries
Carcinoid
Medulloblastoma
Bladder
Lung
Permeative Lesions in Children: Round Cells
Infection
EG
Permeative Lesions in Adults: Mets
Myeloma
Lymphoma, Leukemia
Boney Sequestrum (Calcified nidus in Bone Lesion): Osteomyelitis
EG (button sequestrum)
Osteoid Osteoma
Malignant Transformation of Bone Lesions Fibrous Dysplasia Pagets Osteomyelitis with draining sinus Radiation Bone Infarct Olliers Disease Maffici's Syndrome Hereditary Osteochondromatosis: Fibrosarcoma, OSA, MFH
OSA>> chondrosarcoma, fibrosarcoma
Squamous cell carcinoma
OSA, Condrosarchoma, MFH
Chondrosarcoma
Chondrosarcoma
Chondrosarcoma
Osteonecrosis ASEPTIC: Anemias
Steoids
Ethanol
Pancreatitis, pregnancy
Trauma
Idiopathic
Caisson disease, collagen vascular disease
Jaccouds Arthropathy Ulnar and Volar Subluxation of the Metacarpals: SLE
RA
Scleroderma
Periarticular Osteopenia: RA
Scleroderma
Hempohilia
Osteomyelitis
New Bone Formation in Arthritis: Periostial New Bone Formation
Psoriasis, Reiter's
Osteophytes
OA, CPPD
Acroosteolysis PINCHFO: Psoriasis
Injury
Neuropathy
DM, Leprosy
Collagen Vascular Dx
scleroderma, Raynauds dx
Hyperparathyroidism
Familial
Hadju-Cheney
Other
PVC, snake and scorpion venom
Periostial New Bone Formation in Arthritis: Periostial New Bone Formation
Psoriasis, Reiter's
Osteophytes
OA, CPPD
Calcifications and Arthropathy: Periarticular
scleroderma
Articular
CPPD, Chondrocalcinosis
Joint Space related
Neuropathic, Osteochondritis dissecans
Chondrocalcinosis HOGWASH: Hyperparathyroidism
Ochronosis (Alkaptonuria)
Gout
Wilsons Disease
Arthritides (any)
(P)seudogot CPPD
Hemochromatosis
Differential diagnosis of Athritides By Distribution: DISTAL
OA, Psoriasis, Reiter's Syndrome

PROXIMAL (MCP, Carpus)
RA, CPPD, Hemochromatosis, Wilson's

ULNAR STYLOID
RA
Monoarticular Arthritis CHRIST: Crystal Arthropathies
Hemophilia
RA (atypical)
Infection (excluding Lyme's Dx and gonorrhea)
Synvial
PVNS, synovial osteochondromatosis
Trauma
Neuropathic Joint: COMMON
DM, Spinal Cord Injury, Myelomeningocele, Syringiomyelia, Alcohol Abuse

UNCOMMON
Syphilis (tabes dorsalis)
Congenital iddiference to pain
Neuropathies
Amyloidosis
Phemister's Triad: (TB Arthritis)
Osteoporosis
Marginal Erosions
Slow Cartilage Destruction
Still's Disease: JRA
hepatosplenomegaly
lymphadenopathy
Felty's Syndrome: RA
Splenomegaly
neutropenia
Diffuse Osteosclerosis (Dense Bones) 3Ms Proof: Mets
Myelofibrosis
Mastocytosis
Sickle cell anemia
Pyknodysosis, Paget's
Renal Osteodystrophy
Osteoporosis
Other (hypothyroidism
Fluorosis
CREST Syndrome: calcinosis
Raynauds
esophageal dymotility
sclerodactyly
telangiectasia
Atlantoaxial Subluxation: JRA, RA
Seronegative Spondylarthropathies
SLE
Downs
Moriquio's
Trauma
OSTEOPENIA LOCALIZED OSTEOPENIA: Dissuse osteopenia-pain, immobiliztion
Arthritis
Sudek's Atrophy Reflex Sympathetic Dystrophy
Paget's Dx (lytic phase)
Transient osteoporosis (hip)
Regional Migratory Osteoporosis
OSTEOPENIA DIFFUSE OSTEOPENIA: Primary Osteoporosis
Secondary Osteoporosis
Endocrine Deficiencies
Nutritional Deficiencies
Medications

Osteomalacia
Vit D deficiency, GI absorbtion, Renal Dx

HYPERPARATHYROIDISM

Marrow Replacement
Malignacy (Myeloma)
Marrow Hyperplasia (hemaglobinopathy)
Lysosomal storage dx Gaucher's
Periostium Asymmetric Periostial Reaction: Tumor
Infection (osteo, congenital, soft tissue)
Inflammation (psoriatic, reiter's, JRA)
Trauma (fractures)
Vascular (subperiostial hemorrhage)
Periostium Symmetric Periostial Reaction in Adults: Vascular Insufficiency (venous > arterial)
Hypertrophic Pulmonary Osteoarthropathy (HPOA)
Pachydermoperiostitis
Fluorosis
Thyroid Acropachy
Hypertrophic Pulmonary Osteoarthropathy (HPOA): Intrathoracic Tumor
Bronchogenic Ca
Benign fibrous tumor of the pleura
Mets
Mesothelioma

Chronic Pulmonary Infection
bronchiectasis, abcess

Other but more associated with clubbing
IBD, Cirrhosis, Cyanotic Heart Disease
SKULL Solitary Lytic Lesion: TUMOR
Mets
Multiple Myeloma
EG
Epidermoid Hemangioma

Infection, inflammtion
Osteomyelitis
Sarcoidosis

Metabolic
Paget's
HPT

Trauma
leptomeningeal cyst
SKULL Diffuse skull lesions: Sickle cell anemia, thalasaemia (hair on end)
HPT (salt and pepper skull)
Paget's (cotton wool)
Fibrous Dysplasia (outer table)
Tuberous sclerosis (increased density both sides)
SKULL Multiple Lytic Lesions POEMS: Paget's HPT
Osteomyelitis
EG
Mets, Myeloma
Sarcoidosis
SKULL Basilar Invagination: CONGENITAL
Osteogenesis Imperfecta
Klippel Feil syndrome
Achondroplasia
Chiari Malformation
Cleidocranial dysplasia

Acquired bone softening
Pagets dx
HPT
Osteomalacia, rickets
Spine Vertebral bodies Abnormal density PICTURE FRAME: Paget's (cortex too prominent)
Osteoporosis (center too lucent)
Spine Vertebral bodies Abnormal density IVORY VERTEBRAL BODY: Mets
Pagets
Lymphoma
Infection
Vertebral bodies Abnormal density STRIATED VERTEBRAL BODY: Myeloma
Hemangioma
Osteoporosis
Pagets
Spine Vertebral Bodies Shape abnormalities: Fish Vertebra
Sickle cell dx
thalasemia

Squared vertebra
AS
Pagets
psoriasis, Reiters
Vertebral Outgrowths: Syndesmophytes
AS

Flowing paraspinal ossification
DISH

Small osteophytes
DJD

Large osteophytes
Psoriasis (common)
Reter's (uncommon)
Spine Posterior Spinal Fusion: Congenital
Klippel Feil Synd

Surgical Fusion

Athritides
JRA
AS
Psoriasis
Reiters
Vertebral Body lesion: Mets
Myeloma
Lymphoma
BENIGN
EG
GCT
hemangioma
Posterior Element Vertebral Lesions: Osteoid osteoma
Osteoblastoma
ABC
Solitary Vertebral Lesions A HOG: ABC
Hemangioma
Oseoblastoma
GCT
Posterior Vertebral Scalloping: INCREASED I(NTRASPINAL PRESSURE
Spinal canal tumours
Syrinx
Communicationg hydrocephalus

DURAL ECTASIA
Neurofibromatosis
Marfan Synd
Ehlers-Danlos Synd

CONGENITAL
Achondroplasia
Muchopolysacharidoses
Osteogenis Imperfecta

BONE RESORBTION
Acromegaly
Anterior Vertebral Scalloping: Aortic Aneurysm
Lymphadenopathy
TB spondylitis
Anterior Vertebral Beak: Moriquio (central beak)
(all others inf. beak)
Hurlers
Achondroplasia
Cretinism
Dowms
Platysponyly: DIFFUSE
Thanotropic Dwarf
Osteogenesis Imperfecta

Solitary or Multifocal
Leukemia
EG
Met/myeloma
Sickle cell disease
Pelvis Protrusio Acetabuli: RA
Pagets
Osteomalacia, Rickets
Trauma
AS
Sacroiliitis: BILATERAL SYMMETRIC
AS
Enteropathic
Psoriatic
HPT

BILATERAL ASYMMETRIC
Reter's
Psoriasis

UNILATERAL
Infection
DJD
trauma
Lytic Lesions of the Sacrum: Mets
Chordoma
Plasmycytoma
Chondrosarcoma
GCT
Lytic lesion of the Ilium: Fibrous Dysplasia
ABC
UBC
Hemophilic Tumor

MALIGNANT Lesions
Mets
Lymphoma
Plasmycytoma
Chondrosarcoma
Ewings
Widened Pubic Symphyis: CONGENITAL
Bladder Extrophy
Epispadius
Cleidocranial Dysplasia

BONE RESORPTION / DESRUCTION
Pregnancy
Osteitis Pubis
Infection
Mets
HPT
Lower Extremity Erlenmyer Flask Deformity CHONG: Craniometaphaseal dysplasias
Hemaglobinopathies
Thalasemia
Sickle Cell (often with AVM)
Osteopetrosis
Nieman Pick disease
Gaucher's
Gracile Bones NIMROD: Nerofibromatosis
Immobilization
Muscular dystrophies
JRA
Osteogenesis imperfecta
Dysplasia (Marfan, homocystinurea)
Femoral Head AVN ASEPTIC LEG: Alcoholism
Sickle Cell
Exogenous steroids
Pancreatitis
Trauma SCFE/ # dislocation
Infection
Caisson Disease
Legg-Calve Perthe
Epiphyseal dyslplasia
Gaucher's
Medial Tibial Spur: Osteochondroma
Blount Disease
Turner Syndrome
Post traumatic lesion
Tibial Diaphyseal Cortical Lesion: Adamantinoma
Ossifying Fibroma
Fibrous Dysplasia
EG
Mets
Heal Pad Thickness MAD COP: Criteria > 25 mm
Myxedema (hypothyrodism)
Acromegaly
Dilantin
Callus
Obesity
Peripheral edema
Lytic Lesion of the Finger: Enchondroma
Glomus tumor
Foreign body reaction
Mets (lung)
Sarcoid
Infection
Errosive Arthropathy
Radial Hypoplasia: VACTERL
Thrombocytopenia absent radius
Holt Oram
Fanconi's anemia
Short 4th/5th Metacarpal: Pseudohypoparathyroidism
Pseudopseudohypoparathyroidism
Chromasomal Anomalies (Turner's, Klinefelter's)
Madelung Deformity Premature Fusion of the ulnar aspect of the radial epiphysis resulting in:: Ulnar angulation of the distal radius
Decreased carpal angle
Dorsal subluxation of the ulna
Unilateral or bilateral
Madelung Deformity HIT DOG: Hurler Synd
Infection
Trauma
Dyschondosteosis
Chromasomal XO
Missing Distal Clavicle: Erossive RA
HPT
post traumatic osteolysis
Infection
Mets/ Myeloma
Absent Cleidocarial Dysplasia
Pyknodysostosis
High Riding Shoulder: RA
CPPD
Rotator Cuff Tear
Soft Tissue Cacification TIC MTV: TUMOR
Tumoral Calcinosis
Soft tissue tumor

Inflammation, Infection
Dermatomyositis
Scleroderma
Parasites
Leprosy

Congenital
Ehrlers-Danlos
Myositis Ossificans Progressiva

Metabolic
HPT
CPPD
Calcium hydroxyapetit

Tauma
Myositis ossificans
Burns
Hematoma

Vascular
Calcification
Soft tissue Masses: Tumor
MFH
Fatty tumor
lipoma, liposarcoma
Vascular Tumor hemangioma
Nerve Tumors
Schanoma, Neurofibroma
Mets
Burns
Hematoma
Muscle Rhabdomyosarcoma, leiomyosarcoma
Aneurysm
Abscess
Lucent bone lesions in the Medulla, Well defined, Marginal Sclerosis, No expansion: Geode

Healing benign or malignant bone lesion

Brodie's Abcess

Benigh Bone Neoplasms
UBC, Enchondroma, Chondroblastoma

Fibrous dysplasia
Lucent bone lesions in the Medulla, Well defined, NO marginal Sclerosis, No expansion: Mets
Myeloma
EG
Browns Tumor
Benigh Bone Neoplasms
UBC, Enchondroma
Lucent bone lesions in the Medulla-Ill Defined: Mets
Myeloma
Osteomyelitis
Lymphoma of the bone
Long Bone sarcoma
Osteosarcoma
Ewings
Central Chondrosarcoma
Fibrosarcoma , MFH
Lucent bone lesions in the Medulla, Well defined, Eccentric Expansion: GCT
ABC
Enchondroma
NOF
Chodromyxoid Fibroma
Lucent bone lesions - Grossly Expansile Malignant Bone Neoplasms: Mets
Plasmacytoma
Central chondrosarcoma/lymphoma
Telangiectasia Osteosarcoma
Lucent bone lesions - Grossly Expansile Benign Bone Neoplasms: ABC
GCT
Enchondroma
Lucent bone lesions - Grossly Expansile Non Neoplastic: Fibrous Dysplasia
Hemophilic Tumor
Brown's Tumor
Hydatid
Pseudoarthrosis: non-union of a fracture
Congenital (in the middle to lower third of the fibula and tibia)
Neurofibromatosis
Osteogenesis imperfecta
Cleidocranial dysplasia
Fibrous dysplasia
Ankylosing Spondylitis
Irregular or Stippled Epiphysis: Normal (distal femur)
AVNCongenital Hypothyroidism
Multiple Epiphyseal dysplasia
Trisomy 18 21
Prenatal infections
Warfarin Embyopathy
Zellwegers Synd (cerebrohepatorenal syn)
Fetal Alcohol Syndrome
Solitary Metaphyseal Radiolucent Band: Any severe ilness
Metaphyseal #
Healing Rickets
Leukemia, Lymphoma
Congenital Infections
Scurvy
Alternating radiolucent and Dense Metaphyseal bands: Growth arrest or park's lines
Rickets treated
Osteopetrosis
Chemotherapy
Chronic anemia SC/thalasemia
Treated Leukemia
Solitary Dense Metaphyseal Band: Lead Poisining
(dense line in the proximal femur delineates this from other poisining including biemuth, arsenic, fluoride
Congenital hypothyroidism
Osteopetrosis
Hypevitaminosis D
Dense vertical Metaphyseal Lines: Congenital Rubella (cellary stalk)
Osteopathia striata
Hypophosphotasia
Fraying of the Metaphyses: Rickets
Hypophosphotasia
Chronic Stress in the wrist of young gymnasts
Copper deficiency
Cupping of Metaphyses: Rickets
Trauma
Bone Dysplasias eg achondroplasia
Scurvy
Erosions of the Medial Metaphyses of the Proximal Humerus: Normal
Leukemia
Metastatic neuroblastoma
Gaucher
HPT
RA
Erosions of the Outer End of the Clavicle: RA
HPT
Myeloma
Meys
post traumatic
Cleidocranial Dysplasia
Pyknodysostosis
Focal Rib Lesion: METS
Adult male lung, kidney prostae

Adult female breast

Primary Malignant
Myeloma/plasmacytoma
Chondrosarcoma
Ewings child
Askin tumor of intercostal nerve

Benign
Osteochondroma
Enchondroma
LCH

Non neoplastic
Healed rib #
Fibrous dysplasia
Pagets Disease
Brown's Tumor
Osteomyelitis
Rib Notching Inferior Surface: ARTERIAL
Coarctation of the aorta
Aortic thrombosis
Subclavian Obstruction
pulmonary Oligemia

VENOUS
SVC obstruction

Arteriovenous
Pulmonary AVM
Chest wall AVM

Neurogenic
Neurofibromatosis
Rib Notching Superir Surface: CONNECTIVE TISSUE DISEASE
RA, SLE, Scleroderma, Sjorgen

METABOLIC
HPT

MISC
Neurofibromatosis, osteogenesis imperfecta, progeria
Wide or Thick Ribs: Chronic Anemias
Fibrous Dysplasia
Paget's disease
Healed # with callus
Achondroplasia
Carpal Fusion: ISOLATED
triquetral lunate 1% of pop.
Capitate hamate
trapezium trapezoid

Syndrome related
Turner
Aperts
Holt Oram

Acquired
RA and JRA
Pyogenic Arthritis
Chronic TB arthritis
Post traumatic or sx
Arachnodactyly Elongated and slender tubular bones of the hands and feet: Marfans Syndrome
Homocystinuria
Distal Phalangeal Destruction Resorbtion of the Tuft: Scleroderma
Raynauds Dx
Psoraitic arthropathy
Neuropathic Dxs (DM, Leprosy, syringiomyelia)
Thermal injuries
Trauma
HPT
Distal Phalangeal Destruction Resorption of the Mid-Portion: PVC
Acro-osteolysis of Hadju Cheney
HPT
Distal Phalangeal Destruction Periarticular (erosion at the distal interphlangeal joint): Psoriasis
Erosive arthropathies
HPT
Thermal Injuries
Scleroderma
Distal Phalangeal Destruction Poorly Defined Lytic Lesions: Osteomylitis
mets
Myeloma
ABC rare
GCT
Leprosy
Distal Phalangeal Destruction Well defines Lytic Lesion: Implantation dermoid or epidermoid cyst
Enchondroma
glomus tumor
osteoid osteoma
Fibrous dysplasia
Fluid - fluid levels in Bone Lesions on CT and MRI: BENIGN
ABC
Chondroblastoma
GCT
UBC

MALIGNAT
Telangiectatic Osteosarcoma
MFH
Any necrotic Bone Tumor
Increased Uptake on Bone Scans: Mets
Joint Dx
traumatic #s
Post SX jnt replacement
Padgets
Superscan (absent renal outline)
Metabolic bone disease (same as superscan)
Infection (increased uptake in vascular and blood pool)
Photopenic Areas on Bone Scans: Artefacts (coins, buckles)
Avascular Lesions (cysts)
Myeloma (may show increased uptake)
Leukemia (may show increased uptake)
Radiotherapy fields
Spina Bifida
Advanced Ca (breast possibly due to breast Ca)
Abnormal Bone Scan with Normal or Minimal Radiographic Changes: EARLY DISEASE
Mets, Pagets, Osteomyelitis AVN Primary HPT, Osteodystrophy (pulmonary/ renal)
Scoliosis IDIOPATHIC: Infantile ( up to age 4)>90% thoracic and concave to the right > boys resolve spontaneously

Juvenile (4-9) > girls almost always progressive

Adolescent (after age 10)
> females. Majority concave to the left.
Scoliosis CONGENITAL: NEUROPATHIC
tethered cord, syryngiomyelia, Chiari malformation, disteatomyelia, myelomeningocele

NEUROMUSCULAR DISEASE
myelomeningocele, muscular dystrophy, cerebral palsy

MESODERMAL AND NEUROECTODERMAL DISEASES
Neurofibromatosis, Marfans Synd, Homocystinuria

POST RADIOTHERAPY

LEG LENGTH DISPARITY

PAINFUL SCOLIOSIS
Osteoid osteoma, osteoblastoma, intraspinal tumor, Infection
Erosion, Destruction or Absence of a Pedicle: Mets, Myeloma
Neurofibroma
TB
Benign bone tumor
Congenital Absence
Solitary Dense Pedicle: Osteoblastic Met
Osteoid Osteoma
Osteoblastoma
Secondary to spondlolysis
Secondary to congenitally absent or hypoplastic controlateral posterior elements
intervertebral disc Calcification: Degenerative Spodylysis
Alkaptonuria
CPPD
Ankylosing Spondylitis
JRA
Hemochromatosis
DISH (diffuse idiopathix skeletal hyperostosis)
Gout
Idiopathic
Following Spinal Fusion
Widened Interpeduncular Distance: Myelomeningocele
Intraspinal Mass
Diastematomyelia
Intraspinal Masses EXTRADURAL MASSES: Proloapsed or sequestrated intervertebral disc
Mets, myeloma, lymphoma deposits
Neurofibroma and Ganglioneuroma
Menigioma
hematoma
Abscess
Arachnoid cyst (uncommon)
Intraspinal Masses INTRADURAL MASSES: Menigioma
Neurofibroma
Mets
Subdural Empyema
Intraspinal Masses INTRAMEDULLARY MASS: Ependymoma
Astrocytoma
Dermoid (lipoma, teratoma)
Infarct
Hematoma
Monoarthritis: Trauma
Osteoarthritis
Crystal induced arthritis
RA
TB
PVNS (knee most common)
sympathetic
neuropathic arthropathy
Non Septic Monoarthritis: Gout Synovial Chondromatosis
Amyloidosis
PVNS
Neuropathic Shoulder
Milwaukee Shoulder (Ca hydroxyapetie/ca pyrophosphate deposition
Rapid destructive Arthritis of the Hip
Arthritis with Osteoporosis: RA
JRA
SLE
Pyogenic Arthritis
Reters Synd.(acute phase)
Scleroderma
Hemophilia
Arthritis with Preservation of Bone Density: Osteoarthritis
CPPD
Gout
Psoriatic Arthritis
Ankylosing Spondylitis
Reiter's Synd.(chronic or recurrent dx)
Neuropathic Arthropathy
PVNS
Neuropathic A
Arthritis with a Periostial Reaction: JRA
Reiter's
Pyogenic arthritis
Psoriatic
RA (in less than 5%)
HPOA
Hemophilia
Arthritis with Preserved or Widened Joint Space: Early infective or inflammatory arthritis
Psoriatic Arthropathy
Acromegaly
Gout
PVNS
Arthritis with Soft Tissue Nodules: GOUT
RA
PVNS
Amyloid
Sarcoid
Arthritis Mutilans (pencil in cup): RA
JRA
Psoriatic
Diabetes
Leprosy
Neuropathic Arthropathy
Reiter's (in feet)
Diffuse Terminal Phalangeal Sclerosis: Normal Variant 10%
RA
Scleroderma
SLE
Sarcoid
Calcified Loose Body: Detached Osteophyte
Osteochondral fracture
Neuropathic arthropathy
Calcification of Articular (hyaline) cartilage also called Chondrocalcinosis: CPDD
HPT
Hemochromatosis
Alkaptonuria
Acromegaly
Gout
Wilson's Dx
Sacroiliitis BILATERAL SYMMETRICAL (changes initially to the lower and middle third of the joint and iliac side is more affected): Ank Spond
IBD
HPT
Paraplegia
Psoriatic
Osteitis Condensans ilii (triangular segment on the inferior aspect of the iliac side of the joint multipareous young women)
Sacroiliitis BILATERAL ASYMMETRICAL: reter's
Psoriasis
RA rare
Gout
Osteoarthriris
Sacroiliitis UNILATERAL: Infection
Protrusio Acetabuli: RA
Osteoporosis
Marfans
Osteomalacia and Rickets
Pagets
Ank spond
Widening of the Symphysis Pubis Acquired > 10mm in newborn > 9mm at age 3 > 8 mm at 7 years: Pregnancy
Trauma
Osteitis Pubis
Osteolytic mets
Infection
Ank Spond RA early disease
HPT
Widening of the Symphysis Pubis Congenital (normal Ossification): Extrophy of Bladder
Epispadius
Hypospadius
Prune Belly
Widening of the Symphysis Pubis Congenital (poorly ossified cartilage): Achondrogenesis
Chondroplasia Punctata
Fusion or Bridging of the Symphysis Pubis: Post traumatic
post infectious
Osteitis pubis
OA
Ank Spond
Alkaptonuria
Fluorosis
Femoral Head and Neck Anomalies Coxa Magna (remodlled femoral head becomes wider and flatter): DDH
Perthes Dx
Septic Arthritis
Femoral Head and Neck Anomalies Coxa Plana (flattened femoral head): AVN

ASEPTIC DD
Femoral Head and Neck Anomalies Coxa Valga: IDIOPATHIC

DEVELOPMENTAL
Neuromauscular
Abductor muscle weakness
Diaphyseal Aclasia (multiple metaphyseal exostoses point away from the joint cartilagenous cap may show punctate calcification)

INFLAMMATORY
JRA
Poliomyelitis

TRAUMATIC
femoral neck #
Femoral Head and Neck Anomalies Coxa Vara (to midline): DEVELOPMENTAL
Neuromuscular Dis.
DDH
Fibrous Dysplasia

INFLAMMATORY
RA

VASCULAR
Perthes Dx
AVN

METABOLIC
Renal Osteodystrophy
Rickets
Pagets Dx
Erosion (Enlargement) of the Intercondylar notch of the Distal Femur: JRA
Hemophilia
Psoriatic Arthritis
TB arthritis
RA
Plantar Calcaneal Spur: Idiopathic
DISH
Ank Spond
Psoriatic
reter's
RA
Intrameniscal Signal Changes on Knee MRI: Myxoid Degeneration
Meniscal Tear
Post operative scar tissue

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Deck Info

Number of cards 137