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85 Cards in this Set
- Front
- Back
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Malignant Bone Tumors by Age?
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Up to 10 yo:
Ewing's Osteosarcoma Leukemia/lymphoma 11-20 yo: Osteosarcoma Ewing's Lymphoma/leukemia 21-30 yo: Osteosarcoma Lymphoma Ewing's Malignant Fibrous Histiocytoma Over 30 yo: Myeloma Mets Lymphoma Chondrosarcoma MFH, fibrosarcoma Osteosarcoma |
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Lytic epiphyseal lesions?
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Tumor:
GCT EG Chondroblastoma Mets Infection Osteo TB Subchondral cyst Arthropathy Interosseous ganglion |
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Sclerotic mets?
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Prostate
Breast Hodgkin's Carcinoid Medulloblastoma Bladder Lung |
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Permeative lesions in children?
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Round cell tumors
Infection EG Osteosarcoma |
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Permeative lesions in adults?
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Mets
Multiple myeloma Lymphoma/leukemia Fibrosarcoma |
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Bony sequestrum?
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Osteo
EG Fibrosarcoma Osteoid osteoma |
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Focal Sclerotic lesion?
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"TIC MTV"
Tumor: Benign Osteoma Osteoid osteoma, osteoblastoma Enchondroma Fibrous dysplasia Healing lesions Malignant: Mets Sarcoma Lymphoma Infection: Osteo Congenital: Bone island Melorheostosis Fibrous dysplasia Metabolic: Paget's Trauma: Stress fx Healing fx Vascular: Osteonecrosis Bone infarct |
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Osteonecrosis?
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"ASEPTIC"
Anemia Steroids EtOH Pancreatitis, pregnancy Trauma Idiopathic Caisson dx, collagen vascular |
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Periaricular osteopenia?
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RA
Scleroderma Hemophilia Osteo |
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Subchondral cysts?
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Normal bone density:
DJD CPPD Seronegative spondyloarthropathies Gout PVNS Synovial osteochondromatosis Neuropathic jx Abnormal bone density: Any of the above RA AVN |
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Acroosteolysis?
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"PINCH FO"
Psoriasis Injury (thermal, frostbite) Neuropathy Collagen vascular (scleroderma, Raynaud's) Hyperparathyroidism Familial (Hadju-Cheney) Other (PVC exposure, snake, scorpion venom, phenytoin, porphyria, epidermolysis bullosa) |
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New bone formation in arthritis?
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Periosteal new bone formation:
Psoriasis Reiter's Osteophytes: OA CPPD |
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Calcifications and arthropathy?
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Periarticular:
Scleroderma SLE Articular: CPPD Chondrocalcinosis Joint space related: Neuropathic arthropathy Synovial osteochondromatosis Osteochondritis dissecans Osteochondral fracture |
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Chondrocalcinosis?
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"HOGWASH"
Hyperparathyroidism Ochronosis (alkaptonuria) Gout Wilson's dx Arthritides (P)Seudogout: CPPD Hemochoromatosis |
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Soft tissue swelling in arthritis?
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Symmetrical bilateral swelling:
RA Any inflammatory arthritis Asymmetrical swelling of one digit (Sausage digit): Psoriasis Reiter's Lumpy-bumpy STS: Gout Amyloidosis Multicentric reticulohistiocytosis Sarcoid |
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DDx of arthritis by distribution?
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DIP and PIP:
OA Psoriasis Reiter's Multicentric reticulohistiocytosis MCP and Carpus: RA CPPD Hemochromatosis Wilson's Ulnar styloid: RA |
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Monoarticular arthritis?
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"CHRIST"
Crystal arthropathies Hemophilia RA Infection (not Lyme or gonorrhea) Synovial (PVNS, Synovial osteochondromatosis) Trauma |
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Neuropathic Joint?
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Common:
DM Spinal cord injury Myelomeningocele/ syringomyelia EtOH Uncommon: Syphilis Congenital indifference to pain Neuropathies Amyloidosis |
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Atlantoaxial subluxation?
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RA, JRA
Seronegative spondyloarthropathies SLE Down's Morquio's syndrome Trauma |
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Dense bones?
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"3MS PROOF"
Mets Myelofibrosis Mastocytosis Sickle cell anemia Pyknodysostosis, Paget's Renal Osteodystrophy Others (dysplasias, hypothyroidism) Flourosis |
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Localized Osteopenia?
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Disuse osteoporosis
Arthritis Sudeck's atrophy/RSD Paget's (lytic phase) Transient osteoporosis of hip Regional migratory osteoporosis |
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Diffuse Osteopenia?
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Primary osteoporosis
Secondary osteoporosis: Endocrine Nutritional Hereditary metabolic and collagen disorders Medications Osteomalacia: Nutritional Abnormal Vit D metabolism GI malabsorption Renal disease Meds HPT Marrow replacement |
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Multiple Sclerotic lesions?
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Tumor
Fibrous dysplasia Osteopoikilosis Tuberous sclerosis Mastocytosis Paget's Healing fx Bone infarcts |
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Asymmetrical periosteal reaction?
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Tumor
Infection Inflammation Trauma Vascular (subperiosteal hemorrhage) |
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Symmetrical periosteal reaction in adults?
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Vascular insufficiency (venous > arterial)
Hypertrophic pulmonary osteoarthropathy Pachydermoperiostosis Flourosis Thyroid acropathy |
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DDx for hypertrophic pulmonary osteoarthropathy?
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Vascular insufficiency
Thyroid acropathy Pachydermoperiostosis Fluorosis Diaphyseal dysplasia Hypervitaminosis A |
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Solitary lytic lesion in skull?
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Mets
Myeloma EG Epidermoid Hemangioma Osteo Sarcoidosis Fibrous dysplasia Encephalocele Paget's Hyperthyroidism Leptomeningeal cyst |
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Diffuse skull lesions?
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Sickle cell anemia & Thalassemia (hair-on-end)
HPT (salt and pepper) Paget's (cotton-wool) Fibrous dysplasia (mostly outer table) Tuberous sclerosis (increased density both skull tables) |
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Multiple lytic lesions of the skull?
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"POEMS"
Paget's HPT Osteo EG Mets Myeloma Sarcoidosis |
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Basilar invagination?
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OI
Klippel-Feil Achondroplasia Chiari Cleidocranial dysplasia Paget's HPT Osteomalacia, rickets RA Marfan, Ehlers-Danlos Mets |
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Vertebral body-
Picture frame? |
Paget's
Osteoporosis |
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Vertebral body-
Rugger jersey? |
Renal osteodystrophy
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Vertebral body-
Ivory vertebral body? |
Mets
Paget's Lymphoma Infection |
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Vertebral body-
Bone-in-bone? |
Osteopetrosis
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Vertebral body-
Striated vertebral body? |
Multiple myeloma
Hemangioma Osteoporosis Paget's |
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Vertebral body-
Fish vertebra? |
Sickle cell disease
Thalassemias |
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Vertebral body-
Squared vertebra? |
Ankylosing spondylitis
Paget's Psoriasis Reiter's |
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Vertebral body-
Vertebra plana? |
"PET SIT"
Paget's EG Tumor Steroid Infection Trauma |
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Ivory vertebral body?
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Mets
Lymphoma Paget's Infection |
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Vertebral syndesmophytes?
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AS
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Vertebral flowing paraspinal ossification?
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DISH
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Small vertebral osteophytes?
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Degenerative disease
Spondylosis deformans |
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Large vertebral osteophytes?
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Psoriasis
Reiter's |
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Posterior spinal fusion?
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Congenital (Klippel-Feil)
Surgical fusion JRA AS Psoriatic Reiter's |
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Vertebral body lesion?
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Mets
Myeloma Lymphoma EG GCT Hemangioma Sacromas |
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Posterior element lesion?
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Anterior:
Lymphoma Myeloma Ewing's Mets Hemangioma EG GCT Posterior Osteoid osteoma Osteoblastoma ABC |
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Solitary vertebral lesions?
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"A HOG"
ABC Hemangioma Osteoblastoma/osteoid osteoma GCT |
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Posterior vertebral scalloping?
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Spinal canal tumors
Syrinx Communicating hydrocephalus Neurofibromatosis Marfan Ehlers-Danlos Achondroplasia Mucopolysaccharidoses OI Acromegaly |
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Calcified disks?
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DJD
CPPD Ankylosing spondylitis JRA Hemochromatosis DISH Ochronosis/alkaptonuria |
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Anterior vertebral scalloping?
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Aortic aneurysm
Lymphadenopathy TB spondylitis Delayed motor development |
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Anterior vertebral body beak?
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Morquio's syndrome (central beak)
Hurler's Achondroplasia Cretinism Down syndrome Neuromuscular |
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Platyspondyly
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Diffuse:
Dwarf syndromes OI Morquio's Spondyloepiphyseal dysplasia Solitary or multifocal: Leukemia EG Mets/myeloma Sickle cell disease |
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Protrusio acetabuli?
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Paget's
RA Osteomalacia, rickets Trauma Marfan AS Idiopathic |
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Sacroilitis-
Bilateral symmetric? |
AS
Enteropathic spondyloarthropathy Psoriatic arthritis HPT DJD |
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Sacroilitis-
Bilateral asymmetrical? |
Reiter's
Psoriatic DJD |
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Sacroilitis-
Unilateral? |
Infection
DJD Trauma RA |
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Lytic lesions of the sacrum?
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Mets
Chordoma Plasmocytoma Chondrosarcoma GCT |
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Lytic lesion of the ilium?
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Fibrous dysplasia
ABC UBC Hemophiliac pseudotumor Mets Plasmocytoma Ewing's Chondrosarcoma Lymphoma |
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Widened pubic symphysis?
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Congenital-
Bladder extrophy Epispadias Cleidocranial dysplasia GU or anorectal malformations Bone resorption or destruction- Pregnancy Osteitis pubis Infection Mets HPt |
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Erlenmeyer flask deformity?
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"CHONG"
Craniometaphyseal dysplasias Hemoglobinopathies (Thalassemia, Sickle cell) Osteopetrosis Niemann-Pick disease Gaucher's Other Lead poisoning Fibrous dysplasia Osteochondromatosis Enchondromatosis Fibromatosis |
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Gracile bones?
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"NIMROD"
Neurofibromatosis Immobilization or paralysis Muscular dystrophies RA (juvenile) Osteogenesis imperfecta Dysplasias (Marfan's, homocystinuria) |
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Femoral head AVN?
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"ASEPTIC LEG"
Alcoholism Sickle cell disease Exogenous steroids or Rad Tx Pancreatitis Trauma (fx or SCFE) Infection Caisson disease Legg-Calve-Perthes Epiphyseal dysplasia Gaucher's |
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Medial tibial spur?
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Osteochondroma
Blount's disease Turner's Post-traumatic lesion |
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Tibial diaphyseal cortical lesion?
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Adamantinoma
Osteofibrous dysplasia (ossifying fibroma) Fibrous dysplasia EG Mets |
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Heel pad thickening?
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(thicker than 25mm)
"MAD COP" Myxedema (hypothyroidism) Acromegaly Dilantin Callus Obesity Peripheral edema |
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Well-circumscribed lytic lesion in calcaneus?
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Intraosseous lipoma
Unicameral bone cyst Pseudotumor (hemophiliac) |
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Pseudoarthrosis with bent/bowed bones?
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"ON OF"
Osteogenesis imperfecta NF-1 Osteomalacia/rickets Fibrous dysplasia |
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Digit overgrowth?
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Macrodystrophia lipomatosa
NF Proteus syndrome Macrodactyly Hyperemia (Klippel-Trenaunay-Weber/hemangioma, JRA, infection) |
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Lytic lesion of the finger?
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Enchondroma (multiple: Ollier's or Maffuci's)
Glomus tumor (close to nail, painful) Foreign body reaction Epidermoid inclusion cyst Mets Sarcoidosis Infection Erosive arthropathy Hemangioma |
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Digital amputation?
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Trauma
Surgery Thermal injury Insensitivity to pain (DM, Lesch-Nyhan) Post-meningococcemia |
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Hooked osteophyte (hand)?
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Hemochromatosis
CPPD OA |
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Enlarged epiphysis?
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JRA
Hemophilia Infection |
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Spade tufts?
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Acromegaly
DISH Retinoid toxicity Reiter's |
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Expanded marrow (hand)?
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Thalassemia, sickle cell disease
Fibrous dysplasia Gaucher's Leukemia |
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Arachnodactyly?
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Marfan
Homocystinuria |
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Ulnar deviation?
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RA (erosions)
SLE (no erosions) Jaccoud's arthropathy (post-strep) |
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Radial hypoplasia?
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VACTERL (vertebral body, anal, CV, tracheoesophageal, renal, limb anomalies)
Fanconi anemia Hold-Oram syndrome Cornelia de Lange syndrome Thrombocytopenia-absent radius (TAR syndrome) |
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Short 4th/5th metacarpals?
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Pseudohypoparathyroidism
Pseudopseudohypoparathyroidism Idiopathic Chromosomal anomalies (Turner's, Klinefelter's) Basal cell nevus syndrome Post-traumatic Post-infarct (sickle cell) |
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Madelung's deformity?
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"HIT DOC"
Hurler's syndrome Infection Truama Dyschondrosteosis (Leri-Weil syndrome) Osteochondromatosis Chromosomal XO (Turner's) |
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Missing distal clavicle?
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Erosion RA
HPT Post-traumatic osteolysis Infection Mets/myeloma Gorham's disease Cleidocranial dysostosis Pyknodysostosis |
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High-riding shoulder?
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RA
CPPD Rotator cuff tear |
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Distal clavicle erosions?
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RA
HPT Trauma |
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Soft tissue calcification?
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"TIC MTV"
Tumor Tumoral calcinosis Synovial osteochondromatosis Soft tissue tumor Inflammation/infection Dematomyositis Scleroderma Parasites Leprosy Pancreatitis Myonecrosis Bursitis/tendonitis Congenital Ehlers-Danlos Myositis ossificans progressiva Metabolic HPT Met calcification CPPD Calcium hydroxyapatite deposition Trauma Myositis ossificans Burn injury Hematoma Vascular calcs |
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Soft tissue masses?
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Tumor
Malignant fibrous histiocytoma Lipoma, liposarcoma, fibromatoses Hemangioma Schwannoma, neurofibroma Mets Burns Hematoma Rhabdomyosarcoma, leiomyosarcoma Other Myositis ossificans Abscess Hematoma Aneurysm |
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Psoas abscess?
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"PASH"
Potts' disease Appendicitis Septic arthritis Hyperthyroidism |
