In this radiology lecture, we review the ultrasound appearance of giant cell tumor of the tendon sheath!

Key teaching points include:

AKA tenosynovial giant cell tumor, localized nodular tenosynovitis
2nd most common mass of hand & wrist after ganglion cyst
Most common at volar aspect of first 3 digits. Less commonly at wrist, ankle, foot, knee
On ultrasound, usually homogeneously hypoechoic with well-defined lobulated margins
Closely associated with tendon, but will not move with tendon = Arises from tendon sheath, not tendon itself
May show posterior acoustic enhancement, but internal vascular flow typically present
Usually benign. Can be locally aggressive, rarely malignant. Tx: Surgical excision
Fibroma of the tendon sheath has a similar ultrasound appearance and location but is less common. Benign. Tx: Surgical excision

References:

Middleton WD, Patel V, Teefey SA, Boyer MI. Giant cell tumors of the tendon sheath: analysis of sonographic findings. AJR Am J Roentgenol. 2004;183(2):337-339.

To learn more about the Samsung RS85 Prestige ultrasound system, please visit: https://www.bostonimaging.com/rs85-prestige-ultrasound-system-4

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This video is for informational purposes only. It does not replace the advice or counsel of a doctor or health care professional.

Ultrasound of Giant Cell Tumor of the Tendon Sheath