Journal of Ultrasound in Medicine, Vol 18, Issue 8 531-535, Copyright © 1999 by American Institute of Ultrasound in Medicine
Alternative and effective treatment of shoulder ganglion cyst: ultrasonographically guided aspiration
H. J. Chiou, Y. H. Chou, J. J. Wu, C. C. Hsu, C. M. Tiu, C. Y. Chang and C. Yu
Department of Radiology, Veterans General Hospital-Taipei, Taiwan.
The therapeutic effect of ultrasonographically guided aspiration of a
ganglion cyst of the shoulder is evaluated. Fifteen patients (nine male,
six female) with chronic shoulder pain were enrolled in this study. Each
patient was referred to rule out rotator cuff lesion. The ultrasonographic
examination showed an anechoic cystic lesion in the shoulder region in
every patient and abnormality of the rotator cuff in only four patients.
Under ultrasonographic guidance, an 18 gauge needle was inserted into the
cyst to aspirate the fluid. Initial sonographic imaging showed the cyst,
which appeared as a localized fluid accumulation and was located between
the deltoid muscle and the subscapularis tendon in seven patients, between
the deltoid muscle and the biceps tendon in one patient, below the
coracoacromial ligament in five patients, and over suprascapular notch area
in one patient. The ganglion cysts ranged in size from 3.5 to 30 mm. The
amount of aspirated fluid in each cyst varied from 0.4 to 12 ml (mean, 2.6
ml +/- 3.1) with a clear or light yellowish color and a jelly-like
appearance. No major complications occurred during or after this procedure.
The symptom (pain) was improved after sonographically guided aspiration in
each patient. Follow-up study showed complete relief of pain in four
patients, marked improvement in nine patients, and mild improvement but
still persistent shoulder pain in two patients. Duration of follow-up study
ranged from 2 to 24 months (mean, 6.4 months +/- 6.9). The success rate for
sonographically guided aspiration was 86% on the basis of marked symptom
improvement or relief. Ultrasonographically guided aspiration of shoulder
ganglion cysts is an effective procedure in the management of shoulder pain
caused by ganglion cysts.