CASE OF THE MONTH

Sally Lee
Senior Radiographer
Singapore General Hospital

A 34 years old female had presented with a lump at the radial aspect of her thumb. The lump had been increasing in size over the past year, with pain felt when the thumb is flexed/extended. Tingling sensation at the thumb was felt occasionally. What could be the diagnosis?

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Figure 1: Longitudinal (LS) view of the lesion. It is well-defined, hypoechoic peripherally with hyperechoic central region, and posterior enhancement seen.

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Figure 2. Transverse (TS) view of the lesion.

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Figure 3. Colour Doppler demonstrates hypervascularity within the lesion.

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Figure 4. Colour Doppler demonstrates hypervascularity within the lesion.

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