Diagnostic Ultrasound - Abdomen and Pelvis

Abdominal Wall
Right rectus abdominis muscle
Right external oblique muscle
POSTERIOR ABDOMINAL WALL, CT CORRELATION
Anatomy: Abdomen
Right internal oblique muscle
Right transverse abdominal muscle
Right quadratus lumborum muscle
Right psoas muscle
Right erector spinae muscle
Right psoas muscle
Right iliac blade
Right iliacus muscles
Right external iliac artery
Right external iliac vein
Right gluteus muscles
Right sacroiliac joint
Right external iliac artery
Right iliopsoas muscle
Right iliac blade
Right external iliac vein
Right gluteus muscles
Internal iliac vessels
Left piriformis muscle
(Top) Axial correlative CECT below the kidneys shows the quadratus lumborum muscle is more laterally located and the psoas muscle is
directly anterior to the erector spinae muscle. (Middle) Axial correlative CECT shows the psoas muscle has begun its dorsolateral course
and is now anterior to the iliacus muscle. The iliacus muscle is easily identified as a flat muscle filling the iliac fossa, arising from the
upper 2/3 of the iliac fossa, inner lip of the iliac crest, anterior sacroiliac and the iliolumbar ligaments, and base of the sacrum. (Bottom)
Axial correlative CECT shows the psoas and iliacus muscles have converged and are now indistinguishable from one another. The
resultant iliopsoas muscle passes beneath the inguinal ligament and becomes tendinous as it inserts into the lesser trochanter of the
femur.
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