Presacral space

Presacral space
This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Presacral_space".

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Presacral space

Sacral plexus of the right side. (Presacral space visible but not labeled.)
Dorlands/Elsevier	s_16/14170704

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.

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.

External links

Norman/Georgetown pelvis (malepelvissagittalmidlinestruct)

v • d • e Bones of torso

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

Rib	specific ribs (1, 2, 9, 10, 11, 12, false – 8–12, floating – 11–12) – parts (Angle, Tubercle, Costal groove, Neck, Head)

General vertebral structures	body of vertebra, vertebral arch (pedicle, lamina, vertebral notch), foramina (vertebral, intervertebral), processes (transverse, articular/zygapophysis, spinous)

Cervical vertebrae	C1 (anterior arch, posterior arch, lateral mass), C2 (dens), C3, C4, C5, C6, C7 anterior tubercle, posterior tubercle, foramen transversarium

Thoracic vertebrae	T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12 costal facets (superior, inferior, transverse)

Lumbar vertebrae	accessory process, mammillary process, L5

Sacrum	pelvic surface (anterior sacral foramina), dorsal surface (posterior sacral foramina, median sacral crest, medial sacral crest, lateral sacral crest), lateral surface (sacral tuberosity), base, sacral hiatus – presacral space – sacral promontory – sacral canal – ala of sacrum – sacrovertebral angle

Coccyx

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