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Diagnostic ultrasound ( PDFDrive )

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704 PART III Small Parts, Carotid Artery, and Peripheral Vessel Sonography

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FIG. 19.17 Metastases Involving Cervical Lymph Nodes: Spectrum of Appearances. (A) and (B) Transverse images near the carotid artery

(C) and jugular vein (J) show small, round, hypoechoic lymph nodes (arrows). Despite their small size (~4 mm), the round shape and the hypoechoic

appearance are highly indicative of metastasis. (C) and (D) Longitudinal images show oval hypoechoic nodes. (E) Longitudinal image of thyroid

bed after thyroidectomy shows two abnormal lymph nodes, one of which contains microcalciications (arrow). (F) and (G) Longitudinal images

show heterogeneous lymph nodes containing calciication (arrows). (H) Longitudinal image shows a large lymph node (arrows) containing cystic

change. Cystic change in a cervical lymph node is almost always caused by metastatic papillary carcinoma. (I) Transverse image shows a large,

round lymph node between the internal jugular vein (IJ) and the common carotid artery (CCA).

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