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Diagnostic ultrasound ( PDFDrive )

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CHAPTER 20 The Parathyroid Glands 737

A

B

C

FIG. 20.4 Typical Hypervascularity of Parathyroid

Adenoma. (A) Transverse gray-scale and (B) transverse and

(C) longitudinal power Doppler ultrasound images show

hypervascularity of a parathyroid adenoma with polar feeding

vessel and prominent peripheral vascular arcs.

A

B

C

FIG. 20.5 Spectrum of Size of Parathyroid Adenomas. Longitudinal sonograms. (A) Minimally enlarged, 0.5 × 0.2–cm parathyroid adenoma

(calipers). See also Video 20.2. (B) Typical midsized, 1.5 × 0.6–cm, 400-mg adenoma (arrow). (C) Large, 3.5 × 2–cm, >4000-mg adenoma

(calipers).

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