Diagnostic ultrasound ( PDFDrive )

CHAPTER 21 The Breast 813
A B C
FIG. 21.80 Technique of Needle Aspiration and Biopsy. Ultrasound images show tender, simple tension cyst (A) before aspiration; (B)
during aspiration; and (C) after aspiration. Ultrasound-guided interventional procedures of the breast are performed with the needle oriented along
the long axis of the transducer, with angulation of the needle and appropriate heeling or toeing of the transducer to place the needle almost parallel
to the transducer face and perpendicular to the ultrasound beam. A steeper angle can be used for aspirations because there is no throw associated
with the procedure that might injure underlying chest wall structures.
B
C
A
D
E
Specimen US
FIG. 21.81 Ultrasound-Guided Wire Localization for Excisional Biopsy. (A) Nodule (arrowhead) before the procedure. (B) Nodule (arrowhead)
with the localization needle (arrows) in place. (C) Localization wire (arrows) in place after the needle is removed (arrowhead, nodule). (D) Specimen
radiograph shows the nodule (arrow) in center of specimen. (E) Specimen sonogram, however, shows the nodule extending to supericial margin
of specimen (arrowhead).