MRI update
Impression:
1. Mild fatty muscle atrophy of the supraspinatus, infraspinatus and
teres minor, with low-grade muscle edema which is likely neurogenic
edema given the history. No advanced muscle atrophy noted in the
infraspinatus however, in comparison to the other rotator cuff
muscles.
2. No mass, cyst or other space-occupying lesion within the
suprascapular notch or spinoglenoid notch. No evidence of
suprascapular nerve entrapment or extrinsic compression.
3. Mild to moderate tendinosis of the supraspinatus and
infraspinatus. No full-thickness rotator cuff tear. No labral or
biceps
Narrative
[HST]: SHOULDER PAIN, LABRAL TEAR SUSPECTED, XRAY DONE
LEFT SUPRASCAPULAR NEUROPATHY ON EMG WITH MARKED ATROPHY OF THE INFRASPINATUS MUSCLE
left suprascapular neuropathy on EMG with marked atrophy of the infraspinatus muscle
Exam: Left Shoulder MRI
History: SHOULDER PAIN, LABRAL TEAR SUSPECTED, XRAY DONE:: LEFT
SUPRASCAPULAR NEUROPATHY ON EMG WITH MARKED ATROPHY OF THE
INFRASPINATUS MUSCLE:: left suprascapular neuropathy on EMG with
marked atrophy of the infraspinatus muscle
Technique:
Coronal-oblique: T2 fat sat, T1
Sagittal-oblique: T2 fat sat, T1
Axial: PD fat sat, T1
Findings:
There is mild fatty muscle atrophy in the supraspinatus,
infraspinatus and teres minor, for example on series 8 image 19.
There does not appear to be advanced fatty atrophy of the
infraspinatus however. On T2-weighted imaging, there is mild
intramuscular edema present which may be related to neurogenic edema
given the history. This is seen for example on series 6 image 20,
with slightly greater signal in the muscle compared to the
subscapularis muscle. No underlying muscle or tendon tear is seen,
although there is moderate supraspinatus tendinosis present. No
high-grade or full-thickness tear is identified. There is mild
tendinopathy of the infraspinatus and subscapularis.
There is no mass, cyst or other space-occupying lesion within the
suprascapular notch or spinoglenoid notch to suggest mass effect on
the suprascapular nerve or nerve entrapment. No focal soft tissue
abnormality is seen around the left shoulder or scapula.
No acute osseous abnormality. There is mild glenohumeral and
acromioclavicular DJD. There is mild labral degeneration and
chondromalacia. No labral tear or paralabral cyst. Biceps tendon is
normal in appearance.