Presacral space

Presacral space
Sacral plexus of the right side. (Presacral space visible but not labeled.)
Identifiers
Dorlands /Elsevier	14170704
*Anatomical terminology* [edit on Wikidata]

In human anatomy, the presacral space is inside the pelvis, behind the rectum and in front of the coccyx and sacrum. Normally it is empty, or it contains a pocket of fat.

It is usually covered by sigmoid colon.^[1]

Clinical significance

The presacral space may contain one of several kinds of tumor. The most common tumor here is sacrococcygeal teratoma. Others are retrorectal hamartoma (tailgut cyst), schwannoma, ganglioneuroma, and ependymoma. Also sometimes found here is an anterior meningocele, a relatively mild form of neural tube defect.

Causes of increased pre-sacral space are: ulcerative colitis, granulomatous colitis, lymphogranuloma venereum, and in postirradiation changes, thrombosis of the inferior vena cava and tuberculous proctitis, tumor of the sacrum or posterior wall of the rectum. Carcinomatous deposits in the pelvis can also cause presacral space widening.

References

↑ Linda Cardozo; David Staskin (2006). Textbook of female urology and urogynecology. CRC Press. pp. 1195–. ISBN 978-1-84184-358-2. Retrieved 19 May 2011.

Additional Images

Presacral space.Deep dissection. Anterior view.

External links

pelvis at The Anatomy Lesson by Wesley Norman (Georgetown University) (malepelvissagittalmidlinestruct)

Bones of torso

Vertebrae

General structure	Body Arch pedicle lamina notch Vertebral foramen Intervertebral foramina Processes transverse articular spinous Spinal canal

Cervical vertebrae	Uncinate process of vertebra Transverse foramen Anterior tubercle Carotid tubercle Posterior tubercle Atlas lateral mass anterior arch posterior arch Axis dens Vertebra prominens

Thoracic vertebrae	Costal facets superior inferior transverse Uncinate process of vertebra

Lumbar vertebrae	Processes accessory mammillary

Sacrum	Base sacral promontory Ala of sacrum Lateral surface sacral tuberosity Pelvic surface anterior sacral foramina Dorsal surface posterior sacral foramina Median sacral crest Medial sacral crest Lateral sacral crest Sacral canal sacral hiatus

Coccyx	Coccygeal cornu

Thorax

Rib cage	Ribs true ribs false ribs floating ribs Parts angle tubercle costal groove neck head

Sternum	Suprasternal notch Manubrium Sternal angle Body of sternum Xiphisternal joint Xiphoid process

Thoracic cage	Thoracic inlet Thoracic outlet Intercostal space Costal margin Infrasternal angle

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