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Fig. 4 Illustration of man's right inguinal region from anterior
view shows transducer position to evaluate for spigelian hernia (1), indirect
inguinal hernia (2), direct inguinal hernia (3), and femoral hernia (4). Note
locations of inguinal ligament (curved arrow), rectus abdominis
muscle (R), lateral boundary of Hesselbach's triangle (H) defined by inferior
epigastric artery (open arrow), and spermatic cord
(arrowhead).