Figure 3.

Longitudinal scan of a patient's left testis. Upper left: A medium sized para-testicular worm nest (arrow) is presented in this b-mode image. Upper right: The following m-mode section is positioned at the location of the largest diameter of the worm nest. The corresponding video image can be seen as 7: Movie3A.mpg. Middle left: The same worm nest as above. Middle right: The Colour Doppler-mode presents very few red signals as sign of less lymphatic fluid moved by the adult worms in this dilated lymphatic vessel. The corresponding video image can be seen as 8: Movie3B.mpg. Lower left: The same worm nest as above. The caliper for the PWD is positioned where the worm nest is located. Lower right: The Pulse Wave Doppler-mode confirms the medium sized worm nest by the irregular undulating band caused by the typical movements of the adult worms. The corresponding video image can be seen as 9: Movie3C.mpg.