Retroperitoneal

Retroperitoneal

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Retroperitoneum

Transverse section, showing the relations of the capsule of the kidney. (Peritoneum is labeled at center right.)

Human kidneys viewed from behind with spine removed
Latin	spatium retroperitoneale
MeSH	Retroperitoneal+Space
Dorlands/Elsevier	s_16/12746619

The retroperitoneum (adj. retroperitoneal) is the anatomical space in the abdominal cavity behind (retro) the peritoneum. It has no specific delineating anatomical structures. Organs are retroperitoneal if they only have peritoneum on their anterior side.

Retroperitoneal bleeding, such as from a ruptured aortic aneurysm shows as Grey Turner's sign (flank bruising).

Contents

1 Secondarily retroperitoneal organs
2 Retroperitoneal structures
3 Role in disease
4 References

Secondarily retroperitoneal organs

Organs that were once suspended within the abdominal cavity by mesentery but migrated posterior to the peritoneum during the course of embryogenesis to become retroperitoneal are considered to be secondarily retroperitoneal organs.

Retroperitoneal structures

Structures that lie behind the peritoneum are termed "retroperitoneal". These include:

Primarily retroperitoneal:
- urinary
  - adrenal glands
  - kidneys
  - ureter
  - bladder
- circulatory
  - aorta
  - inferior vena cava
- digestive
  - esophagus (part)
  - rectum
- Reproductive
  - uterus

Secondarily retroperitoneal:
- the head and neck of the pancreas (but not the tail)^[1]
- the second and third portions of the duodenum (but not the first or fourth)^[2]
- ascending and descending portions of the colon (but not the transverse or sigmoid)

This one is all the abdominal retroperitoneal viscera: Ursula Uses Kids to Deliver All Lemon Pies except Sue’s Tasty Crust

Ureters
Urinary bladder
Kidneys
Duodenum
Adrenal glands
Large intestine
Pancreas
EXCEPT (not retroperitoneal)
- Sigmoid
- Transverse
- Colon

Role in disease

References

^ Kyung Won, PhD. Chung (2005). Gross Anatomy (Board Review). Hagerstown, MD: Lippincott Williams & Wilkins, 256. ISBN 0-7817-5309-0.
^ "The Posterior Abdominal Wall". Retrieved on 2007-11-17.

v • d • e General anatomy of torso

Thorax/ Thoracic cavity	Mediastinum (Superior, Anterior, Middle, Posterior) • Superior thoracic aperture • Inferior thoracic aperture • Triangle of auscultation • Intercostal space • Thoracic plane • Thoracic wall/Thoracic cage - fascia (Pectoral fascia, Clavipectoral fascia, Thoracolumbar fascia) • Chest • Midsternal line

Thoracic diaphragm	openings (Caval opening, Esophageal hiatus, Aortic hiatus, Foramina of Morgagni) • Central tendon • Crus of diaphragm • arcuate ligaments (Lateral, Medial, Median)

Abdomen/ Abdominal cavity	Retroperitoneum • Paracolic gutters • Hepatobiliary triangle anterior abdominal wall (Arcuate line, Linea alba, Tendinous intersection, Linea semilunaris, McBurney's point, Traube's space, Inguinal triangle) • Inguinal canal (Deep inguinal ring, Superficial inguinal ring, Intercrural fibers, Crura of superficial inguinal ring) • Lumbar triangle • regions (Epigastrium, Hypochondrium, Umbilical region, Latus, Hypogastrium, Inguinal region) • planes (Transpyloric plane, Intertubercular plane, Midclavicular line) fascia (Fascia of Camper, Fascia of Scarpa, Transversalis fascia, Renal fascia, Rectus sheath)

Pelvis/ Pelvic cavity	Pelvic floor • Retropubic space fascia (Pelvic fascia, Superior fascia of diaphragm of pelvis, Inferior fascia of diaphragm of pelvis, Fascia of the Obturator internus, Tendinous arch, Iliac fascia, Iliopectineal fascia)

Perineum	Anal triangle (Ischioanal fossa, Pudendal canal, Anococcygeal raphe) Urogenital triangle (Superficial perineal pouch, Deep perineal pouch) Perineal body fascia (Dartos/fascia of perineum/superficial perineal fascia/Fascia of Colles, Perineal membrane/"Inferior fascia of UGD", "Superior fascia of UGD")

Wikipedia content modification information:

This page was last modified on 16 August 2008, at 21:39.

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