extremites
CASE 1- KNEE, MENISCAL TEAR
HORIZONTAL FLAP TEAR OF THE MENISCUS
CASE 2 - SHOULDER, CHRONIC DISLOCATION
CHRONIC ANTERIOR SHOULDER DISLOCATION WITH RESULTING HILL-SACHS LESION OF THE HUMORAL HEAD AND BANKART LESION OF GLENOID
CASE 3 - HIP, AVASCULAR NECROSIS

A. Crescent Sign (red arrows) best seen in the "frog-leg" view is caused by resorption of trabecular bone and fracture of subchondral bone.
B. grade 4 osteonecrosis (Ficat-Arlet) with destruction and loss of the sphericalcontour of the femur head (red arrows).Evidence of core decompression (black arrows)

CASE 4 - SHOULDER, ROTATOR CUFF TEAR

FULL THICKNESS ROTATOR CUFF TEAR ( SUPRASPINATUS TENDON ) SIGNIFICANT FLUID ACCUMULATION INCLUDING SUBACROMIAL & SUBDELTOID BURSITIS. T2 CORONAL OBLIQUE AND SAGITTAL IMAGES

CASE 5 - SHOULDER, PARALABRAL CYST

T2 AXIAL AND SAGITTAL IMAGES EXHIBIT A PARALABRAL CYST IN THE SPINOGLENOID NOTCH ( Red Arrows).

CASE 6 - ANEYSMAL BONE CYST
Exspansile non neoplastic tumor-like lesion containing blood filled cavernous spaces separated by fibrous septa.Most common in long bones (femur) and vertebra. May cause pain and interfere with joint function
CASE 7- OSTEOCHONDROMA OF FIBULA
SOLITARY CAULIFLOWER OSTEOCHONDROMA OF THE PROXIMAL FIBULA. OSTEOCHONDROMAS ARE THE MOST COMMON BENIGN TIMORS OF BONE AND USUALLY ARE FOUND IN LONG TUBULAR BONES. THE CORTEX AND SPONGIOSA ARE CONTINUOUS WITH THE PARENT BONE. TWO TYPES -- PEDUNCULATED ( AS ABOVE ) AND SESSILE ( BROAD BASED ). 1% BECOME MALIGNANT.
TEAR OF THE QUADRICEPS TENDON INVOLVING THE OUTER FIBERS AND SPARING THE INNER FIBERS. NOTE THAT THE PATELLAR IS IN ITS NORMAL POSITION.

 

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