s=superior mesenteric artery

T1MRI image

A=Aortic aneurysm

arrow=mural thrombus.

Reference:BiblioMed Textbook-Computed Body Tomography

-bilateral ureteric obstruction(long white arrow).

-fibrous band of fibrosis.

Reference:BiblioMed Textbook-Computed Body Tomography

band of fibrous tissue encasing aorta

Reference:BiblioMed Textbook-Computed Body Tomography

could be idiopathic or due to:

-ruptured aortic aneurysm.

-malignant etiology(cause moderate enhancement).

Reference:BiblioMed Textbook-Computed Body Tomography

right posterior para renal hyperdense,heterogenous

mass suggestive of retro peritoneal hemorrhage,pushing

right kidney anteriorly.

this case due to anti coagulant intake.

left psoas muscle hemorrhage due to ruptured

aortic aneurysm.

Reference:BiblioMed Textbook-Computed Body Tomography

arrow=inter aorto caval lymph adenopathy

this site is the first site to show metastases

from ovarian and testicular carcinoma.

Reference:BiblioMed Textbook-Computed Body Tomography

Benign and malignant lymphadenopathy may exhibit mild (mean, +6 HU) to pronounced (mean, +61 HU) enhancement after intravenous administration of iodinated contrast material with maximal enhancement occurring 1 to 2 minutes after injection.

long black arrow=rim enhancement.

short black arrow=heterogenous enhancement.

this case is renal cell carcinoma.

Reference:BiblioMed Textbook-Computed Body Tomography

R= retro caval lymph adenopathy.

note anterior displacement of aorta.

Reference:BiblioMed Textbook-Computed Body Tomography

low density lymph adenopathy

causes:

1-whipple disease.

2-AIDS disease.

Reference:BiblioMed Textbook-Computed Body Tomography

black arrow=retro peritoneal lymph adenopathy.

white arrow=mesenteric lymph adenopathy.

curved arrow=thickened jejunum.

Reference:BiblioMed Textbook-Computed Body Tomography

arrrow=L.N.enlargement.
arrows=L.N. enlargement forming soft
tissue masses.

big retro peritoneal mass obscuring
great vessels.

Reference:BiblioMed Textbook-Computed Body Tomography


different radiological appearances in different patients with lymphoma.

p=para-aortic L.N.

AC=inter aorto-caval L.N.

RC=retro-caval L.N.

M=mesenteric L.N.

Reference:BiblioMed Textbook-Computed Body Tomography

Reference:BiblioMed Textbook-Computed Body Tomography

arrow head=retro peritoneal lymph nodes

seen in patient after lymph angiography.

Reference:BiblioMed Textbook-Computed Body Tomography

Reference:BiblioMed Textbook-Computed Body Tomography

dilated proximal right ureter.
at 1 cm caudal,right uerter passes behind IVC(arrow).

at 1 cm caudal,right ureter lies anterior to IVC,compare it
with left ureter which lie infront of left psoas muscle.

With CT, the proximal right ureter can be seen coursing medially behind and then anteriorly around the IVC so as to encircle it partially .


Reference:BiblioMed Textbook-Computed Body Tomography

superiorly,left IVC drain into right IVC through

retro aortic left renal vein.

open arrows=duplication of IVC.

Reference:BiblioMed Textbook-Computed Body Tomography

supra renal IVC is in its normal position.

at level of kidneys IVC crosses aorta via left renal vein(arrow).

here, we can find the calcified aorta on the right side

of infra renal IVC(inverted anatomical relation).

Reference:BiblioMed Textbook-Computed Body Tomography

Reference:BiblioMed Textbook-Computed Body Tomography

arrow head=showed adrenal gland related to duodenum

due abscense of IVC.
Arrow=azygous vein.
Arrow head=hemi azygous




at the level of tracheal bifurcation
arrow=azygous vein.
SVC=superior vena cava.


Reference:BiblioMed Textbook-Computed Body Tomography

Reference:BiblioMed Textbook-Computed Body Tomography