Perinephric bridging septa
Citation, DOI, disclosures and article data
At the time the article was created Pradosh Kumar Sarangi had no recorded disclosures.
View Pradosh Kumar Sarangi's current disclosuresAt the time the article was last revised Daniel J Bell had no financial relationships to ineligible companies to disclose.
View Daniel J Bell's current disclosures- Kunin’s septa
- Kunin septa
- Septa of Kunin
- Perinephric bridging septum
- Septum of Kunin
- Kunin septum
- Kunin's septum
Perinephric bridging septa or septa of Kunin (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 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.
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Gross anatomy
Three types of bridging septa have been described:
renorenal: septa running parallel to the renal capsule and attaching back onto the kidney
renofascial: septa connecting the capsule to the adjacent anterior or posterior renal fascia
interconnecting fascia: connecting 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 Milton Kunin, an American uroradiologist 1.
References
- 1. Kunin M. Bridging septa of the perinephric space: anatomic, pathologic, and diagnostic considerations. (1986) Radiology. 158 (2): 361-5. doi:10.1148/radiology.158.2.3941862 - Pubmed
- 2. Goran Mitreski, Tom Sutherland. Radiological diagnosis of perinephric pathology: pictorial essay 2015. (2017) Insights into Imaging. 8 (1): 155. doi:10.1007/s13244-016-0536-z - Pubmed
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