Diagnostic Ultrasound - Abdomen and Pelvis

Abdominal Wall
Anatomy: Abdomen
POSTERIOR ABDOMINAL WALL
Right rectus muscle
Bowel
Right external oblique muscle
Right internal oblique muscle
Right transversus abdominis
Inferior vena cava
Right psoas muscle
Right quadratus lumborum muscle
Vertebral body
Transverse process
Right rectus muscle
Linea semilunaris
Bowel gas
Right external oblique muscle
Right internal oblique muscle
Right transversus abdominis muscle
Right psoas muscle
Right iliac crest
Right iliacus muscle
Right rectus abdominis muscle
Shadowing from bowel gas
Right oblique muscles
Right iliopsoas muscle
Tendon of psoas muscle
Right external iliac artery
Right iliac crest
Right external iliac vein
(Top) Transverse grayscale ultrasound in the lower abdominal region shows the right psoas muscle, composed of the psoas minor which
rests upon the psoas major. The 2 muscles cannot be separated clearly on ultrasound. Because of their depth, the paraspinal muscles
cannot be demonstrated in detail. (Middle) Transverse grayscale ultrasound of the right lower abdomen, continued from the previous
image, shows that the distal psoas muscle has diminished in size. It rests on the medial portion of the iliacus muscle; the latter is a flat
muscle that fills the iliac fossa. Both continue inferiorly together. (Bottom) Distally, the fibers from the iliacus muscle converge and
insert into the lateral side of the psoas muscle to form the iliopsoas muscle. Common iliac vessels can be seen medially.
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