Chapter 14: Musculoskeletal Imaging and Superficial Structures Flashcards
a synovial cyst located within the popliteal fossa; may also be referred to as a popliteal cyst
Baker cyst
inflammation and infection of the skin and subcutaneous tissues
cellulitis
acoustic shadowing caused by bending of a sound beam at the edge of a curved reflector
refractive shadowing
inflammation of the tendon and synovial tendon sheath
tendosynovitis
may be noted as echogenic, fibrous structures connecting muscle to bone
tendons
connect bones to bones
ligaments
Clinical findings:
pain
painful region may be swollen
painful region may be warm to the touch
tendonitis
Sonographic findings: diffuse - enlarged, hypoechoic tendon focal - localized, enlarged hypoechoic area within the tendon fluid may be noted hyperemic flow may be noted
tendonitis
Clinical findings:
pain in area of tendon
swelling
edema
tendon rupture
Sonographic findings:
partial tears - appear as focal hypoechoic areas within the tendon
complete tears - seen as anechoic or heterogeneous area within the tendon, often indicative of a hematoma; may also be sonographically identified as refractive shadowing in the area of the separated tendon, with fat, a hematoma, or granulomatous material filling in the gap created by the tear
tendon rupture
Clinical findings:
asymptomatic
focal tenderness in the popliteal fossa
Baker cyst
Sonographic findings:
anechoic mass with posterior enhancement
complicated cysts may contain echogenic fluid, debris, or septations
Baker cyst
2 things that most often cause cellulitis
Streptococcus pyogenes
Staphylococcus aureus
Inflammation and infection of the skin and subcutaneous tissue is termed: A. ascites B. retroperitoneal fibrosis C. cellulitis D. subcutaneous edema
cellulitis
Clinical findings of tendonitis include all of the following except: A. itching in the area of the tendon B. pain C. edema D. the area is warm to the touch
itching in the area of the tendon
What test can be performed to determine a torn Achilles tendon? A. McBurney test B. McDonald test C. Thompson test D. Baker test
Thompson test
Which of the following is true concerning patients with a lipoma?
A. they often complain of pain in the area of the mass
B. they are often obese
C. they are only slightly tender in the area of the mass
D. they feel no pain in the area of the mass
they feel no pain in the area of the mass
The accumulation of synovial fluid from a weakening in the joint capsule of the knee, as seen in conditions such as rheumatoid arthritis can result in a: A. hemangioma B. lipoma C. Baker cyst D. ganglion cyst
Baker cyst
Fluid within the synovial sheath is indicative of: A. hyperemic flow B. tendosynovitis C. cartilaginous inflammation D. cartilaginous extension
tendosynovitis
Clinical findings of a Baker cyst may mimic those of a/an: A. arteriovenous malformation B. deep venous thrombosis C. knee fracture D. ganglion cyst
deep venous thrombosis
A partial tear of a tendon typically appears as:
A. focal hypoechoic areas within the tendon
B. a focal echogenic area within the tendon
C. a diffusely heterogeneous area within the tendon
D. edema and refractive shadowing in the area of the divided tendon
focal hypoechoic areas within the tendon
Superficial lipomas may appear as all of the following except: A. hypoechoic to the surrounding tissue B. isoechoic to surrounding tissue C. hyperechoic to the surrounding tissue D. anechoic to the surrounding tissue
anechoic to the surrounding tissue