Joint Disease Flashcards
1
Q
Where would you expect to see this lesion?
A
Extensor surfaces
(Rheumatoid nodule - acellular center with palisaded histiocytes)
2
Q
Ddx?
A
Giant cell tumor
TB
3
Q
This crystal, if the light is held parallel, would most likely affect which joints first and why?
A
Hands and feet - increased distance from the heart = lower temp = ppt of uric acid at lower concentrations
4
Q
Where would you expect this to have been biopsied?
A
Hand or foot
(Spaces lined by myxoid tissue = ganglion cyst)
5
Q
This lesion causes ____ to occur in ___ disease.
A
Joint erosion
RA
(Pannus - synovial hyperplasia + inflammatory cells)
6
Q
This crystal would affect which joint most commonly?
A
Knee
(Rhomboid = CPP crystal)
7
Q
Cause?
A
Degenerative process in tendons
(Ganglion cyst)
