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Wk 4 Panc Retroperitoneum structures

Pneumoretroperitoneum is by definition presence of gas within the retroperitoneal space. It is always abnormal and has a relatively small differential. http://radiopaedia.org/articles/pneumoretroperitoneum

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Retroperitoneal space and Retroperitoneal organs - YouTube

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Organs of the retroperitoneal space More

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Figure 2 Identification and incision of the white line of Toldt and mobilization of the colon and access to the retroperitoneal space (arrow).

Psoas muscle abscess and fluid collections are located in the retrofascial space rather than in the retroperitoneal space because the psoas muscles are located posterior to the transversalis fascia, which is the posterior boundary of the retroperitoneum. Ultrasonography is diagnostic in only 60% of cases of psoas abscess, compared with 80% to 100% for CT. Read more: http://radiopaedia.org/articles/psoas-muscle-abscess

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Radiology Essentials 105 : Sectional Anatomy of Retroperitoneal Spaces

Crossed renal ectopia is said to be present when the kidney is seen in the opposite retroperitoneal space. It is more common for the left kidney to be ectopically located on the right side. More than 85% of these get fused resulting in cross fused renal ectopia. Less than 15% cases are non-fused. http://radiopaedia.org/articles/crossed-renal-ectopia

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