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| Interfascial Retroperitoneal |
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| Planes |
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| · | Retromesenteric
- between anterior pararenal and |
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| perinephric
spaces contiguous across midline and |
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| laterally with
retrorenal and lateral conal space |
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| · | Retrorenal -
between perinephric and posterior |
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| pararenal
spaces |
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| · | Lateral conal |
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| * Combined fascial plane continues into
pelvis |
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| anterolateral
to psoas m. allowing pathway to pelvis |
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| * Trifurcation of 3 planes -
anterioposterior location is |
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| variable |
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