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53 Cards in this Set
- Front
- Back
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6 Roentgen signs
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Size
Shape Location Number Margination Opacity "Never Shoot Semen On Michael Landon." |
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Gas in soft tissue can come from:
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Communication
Anaerobes Iatrogenic |
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Dystrophic Mineralization can be caused by:
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Thermal injury
Calcinosis Parasitic migration Granulomatous disease Steroid injections Chondrocalcinosis |
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Metastatic mineralization can be caused by:
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CRF
Malignant Neoplasia Hyperparathyroidism Hypervitaminosis A Hypervitaminosis D Hypoadrenocorticism (Addison's) |
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List 4 mechanisms for soft tissue mineralization and why each happens.
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1. Dystrophic - mineralization of dead tissue. Ca/P normal. Parasitic migration, Trauma
2. Metastatic - Ca/P levels elevated. CRF, Cushing's 3. Neoplastic - Due to cancer 4. Idiopathic |
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3 types of new bone formation and where they occur?
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1. Osteophyte - 2ndary to degenerative change. Found on articular surfaces. Attempt to increase stability.
2. Periosteal - Post-injury. Occurs when the cortical layer is pulled from the bone and the cambian layer grows back down. 3. endothesophyte - occurs on cartilagenous and ligamentous attachments to bone |
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Name the 4 most common places for OC lesions
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So, Can Any Human Help
Superman Lower Fat/Calories To Make The Rich Take Easier Monthly Assaults Harming Commies? Shoulder Caudal Aspect Humeral Head Stifle Lateral Femoral Condyle Tarsus Medial Trochlear Ridge Talus Elbow Medial Aspect Humeral Condyle |
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2 common rad abnormalities of Panosteitis
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usually occurs in diaphysis near nutrient foramen
fragmented/patcy appearance to the trabeculae in the area |
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Two common rad abnormalities of LCP Disease?
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flattened femoral head
Increase in bone opacity of the femoral head |
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How tell between Fungal OM and Primary bone tumor?
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Fungal - crosses joints to affect multiple bones in any region
Primary - metaphyseal region of a single bone (usually) |
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What's the difference between osteomalacia and osteoporosis?
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Porosis - loss of bone mass. Matrix is normal just not enough of it. Bones are brittle.
Malacia - matrix insufficiency. Not enough Ca or P. Bones are soft. |
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What's the difference between periosteal rxn and osteophyte form'n?
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PR is productive change at the site of damaged bone. Periosteum has been lifted off. New bone grows beneath.
OF is productive change in response to 2ndary OA. |
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OC vs. OCD
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OCD = disconnected; floating around in the joint.
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Shoulder OC common signalment
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6-9 mo
Lg breed male bilat |
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Elbow OC common signalment
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5-10 mo
Lg breed: Lab Bilat |
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Stifle OC common signalment
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6-11 mo
Lg breed Bilat |
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Tarsal OC common signalment
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6-12 mo
Lg breed: Rott, Lab bilat Worst prognosis |
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UAP common signalment
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5-12 mo
GSD St.B Bassets |
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Panosteitis common signalment
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5-12 mo
Lg Breed: GSD; Dobie; retrievers, bassett Male |
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MO common signalment
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Lg breed
2-7 mo |
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RCC common signalment
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Lg breed: St. B
6-12 mo distal ulnar physis mostly |
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Hip Dysplasia common signalment
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All breeds
3mo - 3 yr |
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LCP Dzs common signalment
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<20kg
4mo - 1 yr unilat |
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Patellar lux common signalment
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Small breeds
Young 4 classes: 1 - intermittent 2 - frequent 3 - permanent lux 4 - lux with tibial rotation |
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HO common signalment
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Middle aged
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Fungal OM Common Signalment
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Sporting dogs
Young-mid-age |
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Bacterial OM common signalment
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Any breed
Any age young/immunosuppressed |
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Primary bone tumor common signalment
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Lg Breeds
7-9 yo Usually OSA |
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Draw the Salter classifications. Assign generic faces according to prognosis. Circle the most common.
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1/2: px - good
3/4: px - guarded 5: Total Dog Replacement 2 most common. |
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Premature closure of the distal radial physis
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premature closure of the dital ulnar physis
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Types of non-union fractures to watch out for?
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Malunion
Nonunion viable - elephant's foot Oligotrophic viable/non-viable non-union (can't tell apart - no callus) |
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OA common signalment
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Any age, but usually older
Any breed, but usually lg |
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Osteophytes vs. Enthesophytes
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O - new bone growth
E - mineralization of jt capsule/ligs |
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CCLR common signalment
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Young, athletic - Old, fat
Female Any, but >Lg breeds |
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Septic Arthritis common signalment
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Any breed
Younger animals secondary to penetrating wound |
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Erosive polyarthritis common signalment and types
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Small: Poodles, shelties
1-9yo; avg 5 Rheumatoid Feline non-infectious polyarthritis |
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Non-erosive Polyarthritis and most common type
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Any breed (GSD)
Young-middle aged Systemic lupus Erythematosus |
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Joint Neoplasia
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M-L dogs
M-O age |
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DDX for joint neoplasia
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Synovial carcinoma
Histiocytic Carcinoma Chondrosarc Fibrosarc Synovial Myxoma |
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Common causes of SST mineralization
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Metastatic - high Ca/P
Idiopathic Neoplastic Dystrophic - dead tissue |
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What's going on here?
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Intracapsular swelling: centered on jt.
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What's going on here?
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Intracapsular swelling (fat pad displacement)
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What's going on here?
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Intracapsular swelling (compression of fat pad, displacement of fascial planes)
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What's going on here?
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Extra capsular swelling
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What's going on here?
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Osteopenia (double cortical sign)
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What's going on here?
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Geographic lysis (osteoma?)
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What's going on here?
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Moth-eaten lysis
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What's going on here?
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Moth-eaten lysis
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What's going on here?
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Permeative Lysis
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What type of periosteal reaction is this?
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Lamellated
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What type of periosteal reaction is this?
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Columnar
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What type of periosteal reaction is this
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Spiculated
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