Perinephric bridging septa
Updates to Article Attributes
Perinephric bridging septa or or septa of Kunin are (singular: septum) are composed of numerous fibrous lamellae which traverse the perinephric fat 1,2 where they suspend the kidneys within the perirenal space. The The septa may act as a barrier or conduit for the spread of pus, blood, urine, and neoplasms in the perinephric space.
In traumatic bleeding, the pressures generated in these closed spaces are considerable and may be adequate to tamponade a bleeding point, which may lead to conservative management.
Gross anatomy
Three types of bridging septa have been described:
-
reno-renalrenorenal:
septasepta running parallel to the renal capsule and attaching back onto the kidney -
reno-fascialrenofascial:
septasepta connecting the capsule to the adjacent anterior or posterior renal fascia interconnecting fascia:
connectingconnecting the anterior and posterior layers of the perinephric fascia
Radiographic features
The septa can be appreciated as fine lines within the perinephric space extending from the surface of the kidney on CT and MRI.
History and etymology
The septa were first described by MiltonKunin, an American uroradiologist 1.
-<p><strong>Perinephric bridging septa</strong> or <strong>septa of Kunin</strong> are composed of numerous fibrous lamellae which traverse the perinephric fat <sup>1,2 </sup>where they suspend the <a href="/articles/kidneys">kidneys</a> within the <a href="/articles/perirenal-space">perirenal space</a>. The septa may act as a barrier or conduit for the spread of pus, blood, urine, and neoplasms in the perinephric space.</p><p>In traumatic bleeding, the pressures generated in these closed spaces are considerable and may be adequate to tamponade a bleeding point, which may lead to conservative management.</p><h4>Gross anatomy</h4><p>Three types of bridging septa have been described:</p><ul>-<li>reno-renal: septa running parallel to the renal capsule and attaching back onto the kidney</li>-<li>reno-fascial: septa connecting the capsule to the adjacent anterior or posterior renal fascia</li>-<li>interconnecting fascia: connecting the anterior and posterior layers of the perinephric fascia</li>-</ul><h4>Radiographic features</h4><p>The septa can be appreciated as fine lines within the perinephric space extending from the surface of the kidney on CT and MRI.</p><h4>History and etymology</h4><p>The septa were first described by <strong>Milton</strong> <strong>Kunin</strong>, an American uroradiologist <sup>1</sup>.</p>- +<p><strong>Perinephric bridging septa</strong> or <strong>septa of Kunin</strong> (singular: septum) are composed of numerous fibrous lamellae which traverse the perinephric fat <sup>1,2 </sup>where they suspend the <a href="/articles/kidneys">kidneys</a> within the <a href="/articles/perirenal-space">perirenal space</a>. The septa may act as a barrier or conduit for the spread of pus, blood, urine, and neoplasms in the perinephric space.</p><p>In traumatic bleeding, the pressures generated in these closed spaces are considerable and may be adequate to tamponade a bleeding point, which may lead to conservative management.</p><h4>Gross anatomy</h4><p>Three types of bridging septa have been described:</p><ul>
- +<li><p>renorenal: septa running parallel to the renal capsule and attaching back onto the kidney</p></li>
- +<li><p>renofascial: septa connecting the capsule to the adjacent anterior or posterior renal fascia</p></li>
- +<li><p>interconnecting fascia: connecting the anterior and posterior layers of the perinephric fascia</p></li>
- +</ul><h4>Radiographic features</h4><p>The septa can be appreciated as fine lines within the perinephric space extending from the surface of the kidney on CT and MRI.</p><h4>History and etymology</h4><p>The septa were first described by <strong>Milton</strong> <strong>Kunin</strong>, an American uroradiologist <sup>1</sup>.</p>
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