transfer of disease/cancerous lesions from one organ to another
inflammation of the bursae or fluid-filled sacs that enclose joint.
fluid-filled jt space with possible calcification
carpal tunnel syndrome def
compression of median nerve as it passes thru the center of the wrist
carpal tunnel appearance
possible calcification in the carpal sulcus
break in the bone
disruption in bony cortex with soft tissue swelling
joint effusion def
accumulated fluid in jt cavity. sign of an underlying condition
joint effusion appearance
fluid-filled jt cavity
noninflammatory jt disease - degenerative. Gradual deterioration of articular cartilage with hypertrophic bone formation
narrowing of jt space w/periosteal growths on the jt margins
infection of bone or bone marrow
soft tissue swelling and loss of fat pad detail visibility
marble bone. Hereditary disease - abnormally dense bone. May lead to obliteration of the marrow space
Chalky white or opaque with lack of distinction b/w the bony cortex and trabeculae
reduction in quantity of bone; atrophy of skeletal tissue. Most fractures are secondary to osteoporosis.
decrease in bone density, thin cortex
"osteitis deformans" - destructive bone disease followed by reparative overproduction of very dense yet soft bones that fracture easily. Bowed legs, e.g. Most common bones: pelvis, femur, skull, vertebrae, clavicle, and humerus.
Paget's disease appearance
mixed areas of sclerotic and cortical thickening along with radiolucent lesions. "Cotton wool"
chronic inflammatory changes. Earliest found is soft tissue swelling around ulnar styloid of wrist.
rheumatoid arthritis appearance
closed jt spaces with subluxation of the MCP jts.
sprain or tear of ulnar collateral ligament of the thumb near the MCP jt of the hyperextended thumb.
skier's thumb appearance
widening on the inner MCP jt space of thumb and increase in degrees of angle of MCP line
malignant. Most common of primary cancerous bone tumors. Arises from bone marrow or marrow plasma cells. Usually fatal within a few years.
multiple myeloma appearance
punched out osteolytic (loss of calcium in bone) lesions, scattered thru the affected bones
"osteosarcoma" - 2nd most common Malignant tumor. May develop in people with Paget's disease.
In children and young adults. "Onion peel" appearance. Arises in bone marrow. Prognosis is poor
Slow growing tumor of the cartilage.
Dense calcifications within the cartilaginous mass
Slow-growing cartilaginous tumor of small bones of hands and feet
well-defined, radiolucent-appearing tumors with a thin cortex that often leads to pathologic fracture w/only minimal trauma
"exostosis" - arise from outer cortex, Most common benign bone tumor.
outer cortex with tumor growing parallel to bone, pointing away from the adjacent jt.
fracture of posterior lip of the distal radius involving the wrist jt
fracture at base of 1st metacarpal bone extending into the carpometacarpal jt
transverse fracture thru metacarpal neck. Mostly in 5th metacarpal
Transverse fracture of distal radius where distal fragment is displaced posteriorly
Reverse of Colles. Transverse fracture of distal radius with distal fragments displaced anteriorly