-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