-
Bone 2
- Absence/Loss of Fingers
- Mechanical Trauma
- Thermal Trauma (Burns, Frostbite)
- Amniotic Bands
- Embolic Dz (Meningococcemia)
- Congenital Indifference to Pain
-
Lytic Lesion in Finger
- Enchondroma
- ABC
- Glomus Tumor (Distal Tuft of Finger, Usually Arises in Soft Tissues)
- Epidermoid Inclusion Cyst (Distal Tuft of Finger, Erodes Bone, Associated with Trauma)
- Giant Cell Tumor
- Giant Cell Reparative Granuloma
- Mets (See Below)
- Sarcoid (�Lace-Like�)
- Infection
- Foreign Body
-
Bone Mets that can go to Hands and Feet
- Renal
- Lung
- Breast
- Melanoma
- Thyroid
-
Lytic Calcaneal Lesion
- Simple Cyst
- Intraosseous Lipoma (Contains Calcifications)
-
Soft Tissue Mass in the Foot
- Fibromatosis (Plantar)
- Morton�s Neuroma (Plantar)
- Giant Cell Tumor of the Tendon Sheath (Low Signal Like PVNS)
- Foreign Body Granuloma
- Peripheral Nerve Sheath Tumor
- Synovial Sarcoma
- Hemangioma (Contains Calcifications)
- Synovial Osteochondromatosis (Contains Calcifications)
-
Heel Pad Thickening
- MAD COP
- Myxedema (Hypothyroidism)
- Acromegaly
- Dilantin
- Callus
- Obesity
- Peripheral Edema
-
Arthridities-AUTOIMMUNE
- RA (Proximal (Hands), Bilateral, Symmetric, Marginal Erosions, Uniform JSN, Osteoporosis, Soft Tissue Swelling)
- Scleroderma
- Lupus (Subluxations, DDx is Jaccoud�s Arthropathy)
-
Arthridities-SERONEGATIVE
- Ankylosing Spondylitis (Syndesmophytes and Vert. Body Squaring)
- Reiter
- Psoriatic (Combination of Productive and Erosive Changes, �Mickey Mouse Ears�, �Pencil-in-Cup�, Acro-Osteolysis)
- Enterpathic
-
Arthridities-METABOLIC
- Gout (Well Defined Marginal Erosions, Overhanging Edge, Preserved Joint Space, Soft Tissue Nodules, Bilateral Olecranon Bursitis, Random Distribution, NO Osteopenia)
- CPPD (Chondrocalcinosis in Fibrocartilage: Menisci of Knee, change of Fibrocartilage of Wrist, Symphysis Pubis, Acetabular Labrum as well as Hyaline Cartilage: Wrist, Knees, Elbows, Hips; Subchondral Cysts; Different Distribution than OA ie: Shoulder, Elbow, Radiocarpal Joint and Patellafemoral Joint)
- Hemochromatosis (Similar to CPPD)
- Ochronosis
- Amyloid (Cystic Changes, Preserved Joint Space, Multiple Joints esp Hips)
- Multicentric Reliculohistiocytosis (Distal Phalangeal Joints, Erosions)
- Hemophilia
-
Arthridities-DEGENERATIVE
- Osteoarthritis (Joint Space Narrowing, Sclerosis, Osteophytes)
- Erosive OA (Central Erosions)
-
-
Monoarticular Arthritis
- CHIPSTR
- Crystal Arthropathies (CPPD, Gout)
- Hemophilia
- Infection (including TB)
- PVNS (NO Calcifications)
- Synovial Chondromatosis
- Trauma
- Rheumatoid (atypical)
-
Non-Articular Bony Erosions
- Gout
- PVNS
- Synovial Osteochondromatosis
- RA
-
Sacroiliitis-BILATERAL SYMMETRIC
- AS
- Inflammatory Bowel Dz
- Psoriatic Arthritis
- Hyperparathyroidism
- DJD
-
Sacroiliitis-BILATERAL ASYMMETRIC
- Reiters
- Psoriatic Arthritis
- DJD
-
-
Soft Tissue Calcification
- Dermatomyositis
- Scleroderma
- Tumeral Calcinosis (Idiopathic or Renal Failure)
- Hyperparathyroidism
- Hypervitaminosis D
- Milk Alkali/ Renal Osteodystrophy
- Oxalosis
- Parasitic Infection
- Trauma (Myositis Ossificans)
- Synovial Chondromatosis (In Joint Space)
- Hydroxyapatite (Periarticular, Calcific Tendonitis)
- Tumor (Hemangioma, Sarcoma)
-
Chondrocalcinosis
- CPPD (Fibrocartilage and Hyaline Cartilage)
- Hemochromatosis
- Hyperparathyroidism
- Ochronosis (Homogentisic Acid Oxidase Deficiency)
- Gout
- Wilsons Dz
- Arthridities
-
Intraarticular Calcifications
- Articular Chondroma (Dysplasia Epiphysealis Hemimelica, may or may not be associated with multiple Osteochondromas)
- Hemangioma
- Synovial Chondromatosis
- Loose Body
- Osteochondritis Dissecans
- Intraarticular Synovial Sarcoma (usually extraarticular)
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