Thrall chapter 17 principles of radiographic interpretation of the appendicular skeleton Flashcards
(14 cards)
1) Which of the following features are features of an aggressive bone lesion? (can be more than one)
a) Primarily osteolytic
b) Poorly defined transition zone
c) Smooth periosteal reaction
d) Permeative lysis
b,d
2) Which edges are projected in a dorsolateral/palmaromedial projection of the equine carpus? (can be more than one)
a)dorsolateral
b)palmaromedial
c) dorsomedial
d) palmarolateral
c,d
what projection of the tarsus is shown below?
a)Dorsolateral-palmaromedial
b) dorsolateral-plantaromedial
c) dorsomedial-plantarolaterial
d) dorsoplantar
b
what bone is labelled ‘12’ in the image above?
a) fourth tarsal bone
b) calcaneus
c) talus
d) third tarsal bone
b sustentaculum tali of calcaneus
What is the name of this projection of the canine shoulder?
a) cranioproximal-caudoproximal
b) cranioproximal- craniodistal
c) cranial proximal 25 degrees- caudodistal
d) dorsoproximal- dorso-distal
B
what projection is this of the canine tarsus?
a) dorsal plantar
b) extended dorsal plantar
c) flexed dorsopalmar
d) flexed dorsoplantar
D
to assess for ocd of the trochlea ridges
what projection of the equine carpus is this?
a) DLPM
b) DMPL
c) flexed ML
d) skyline
A- dorsolateral palmaromedial
which carpal bone is most proximal in a flexed ML projection of the equine carpus?
a) intermediate
b) radial
c) ulna
d) accessory
A?
osteosarcomas usually originate where?
a) diaphysis
b) metaphysis
c) epiphysis
d) physis
B
OSA in cats…
a) has bimodal distribution
b) are more likely to cross the joint space
c) is more common in the axial skeleton
d) accounts for 70-80% of feline primary bone tumours
D
a- usually older cats but can occur in young cats
b) don’t tend to cross joint spaces
c- appendicular slightly more common than axial (medullary origin OSA, there are other types)
which is an uncommon site of a metastatic bone tumour?
a) carpal bone
b) rib
c) vertebrae
d) proximal femur
A
The lesion distribution is metaphyseal or diaphyseal through the nutrient foramen, and most common sites are in the axial skeleton, such as vertebrae and ribs, and the proximal extent of long bones
which is the least likely diagnosis
a) keratoacanthoma
b) melanoma
c) osteomyelitis
d) none of the above
D
hard to tell
this was keratoacanthoma
differen-tial diagnoses include both neoplastic etiologies (squamous cell carci-noma, melanoma, osteosarcoma, soft-tissue sarcoma, mast cell tumor,subungual keratoacanthoma) and nonneoplastic etiologies (granuloma, cellulitis with or without osteitis, nailbed epithelial inclusion cyst)
Which type of fungal disease is best characterised with the following definition: Typically osteolytic with proliferation and soft tissue swelling. Majority of bone lesions are solitary and occur distal to the stifle and elbow.
Coccidiomycosis
Blastomycosis
Histoplasmosis
Aspergillosis
blasto
name 2 protozoal diseases which can cause osteomyelitis
hepatozoonosis, leishmania
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