Peripheral Nerve Sheath Tumor || Ultrasound || Case 308

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Peripheral Nerve Sheath Tumor || Ultrasound || Case 308

Visit for more: https://www.imagingstudy.com/2023/12/...

Clinical Features:
A 67-year-old male patient came with right calf swelling for 2 years.

Ultrasound Features:
- An ovoid heterogeneously hypoechoic well-defined mass with tapered ends with no definite surrounding architectural distortion is noted along the right gastrocnemius muscle.
- Color Doppler shows internal vascularity with predominantly peripheral flow (RI: 0.84).

Remember:
- Target sign: Central hyperechogenicity representing fibrocollagenous component surrounded by peripheral hypoechogenicity representing myxoid component; more commonly seen in neurofibroma.
- Intratumoral hemorrhage may lead to sudden increase in tumor size.

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