Hypovascular retroperitoneal lesions
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Hypovascular retroperitoneal lesions are findings thatthose which do not enhance in the late arterial and portal venous phases on CT. Some of these lesions may show progressive enhancement in the delayed phase due to their fibrous or myxoid matrix components.
Non-enhancing lesions
Delayed-phase enhancing lesions
These lesions show minimal enhancement in the portal phase and demonstrate progressive intake of contrast in the delayed phase.
Benign
malignant
-<p><strong>Hypovascular retroperitoneal lesions</strong> are findings that do not enhance in the <a href="/articles/late-arterial-phase">late arterial</a> and <a href="/articles/portal-venous-phases">portal venous phases</a>. Some of these lesions may show progressive enhancement in the delayed phase due to their fibrous or myxoid matrix components.</p><h4>Non-enhancing lesions</h4><ul>- +<p><strong>Hypovascular retroperitoneal lesions</strong> are those which do not enhance in the <a href="/articles/late-arterial-phase">late arterial</a> and <a href="/articles/portal-venous-phases">portal venous phases</a> on CT. Some of these lesions may show progressive enhancement in the delayed phase due to their fibrous or myxoid matrix components.</p><h4>Non-enhancing lesions</h4><ul>
-<li><a title="Myxoid liposarcoma" href="/articles/myxoid-liposarcoma">retroperitoneal myxoid liposarcoma</a></li>- +<li><a href="/articles/myxoid-liposarcoma">retroperitoneal myxoid liposarcoma</a></li>