Ultrasound of Giant Cell Tumor of the Tendon Sheath

What this episode covers

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 Click the YouTube posts tab or follow on social media for bonus teaching material posted throughout the week! Spotify: https://spoti.fi/462r0F2 Instagram: https://www.instagram.com/Radquarters/ Facebook: https://www.facebook.com/Radquarters/ X (Twitter): https://twitter.com/Radquarters Reddit: https://www.reddit.com/user/radiologistHQ/ This video is for informational purposes only. It does not replace the advice or counsel of a doctor or health care professional.

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