What is Presacral tumor?
Presacral tumors refer to a group of rare and heterogeneous tumors that occur in the potential space between the rectum and the sacrum (1, 2) (Figure 1). Most of the published papers on these tumors are single case reports or studies on a limited number of cases.
What is a presacral space lesion?
Also referred to as retrorectal tumors, presacral tumors are rare tumors that develop in the area between the rectum and lowest part of the spine (or back of the pelvis) called the sacrum. The tumor can come in a variety of lesions, ranging from a cyst to a mass that can invade surrounding structures.
Where is the Retrorectal space?
The retrorectal space, also known as the presacral space, is a space bounded anteriorly by the posterior wall of the rectum, posteriorly by the sacrum and coccyx, superiorly by the peritoneal reflection, and inferiorly by the pelvic floor muscles.
What causes Presacral fluid?
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.
What is presacral abscess?
A presacral abscess was defined as a localized abscess positioned anterior of the sacrum on CT scan (with rectal contrast) without the presence of a fecal general peritonitis based on anastomotic leakage.
What is a presacral lymph node?
Presacral nodes are immediately anterior to the sacrum and posterior to the mesorectal fascia. The anterior internal iliac subdivision is the most anterior of the internal iliac nodes; it is located anteriorly at the origin of the proximal branches of the anterior division of the internal iliac arteries.
What does Retrorectal mean?
Medical Definition of retrorectal : situated or occurring behind the rectum a retrorectal abscess.
What is Denonvilliers fascia?
The rectoprostatic fascia (Denonvilliers’ fascia) is a membranous partition at the lowest part of the rectovesical pouch. It separates the prostate and urinary bladder from the rectum. It consists of a single fibromuscular structure with several layers that are fused together and covering the seminal vesicles.
What is Presacral abscess?
What are Presacral lymph nodes?
Where is a presacral abscess?
What kind of tumor is in the presacral space?
A tumor in this area is rare and can be benign or malignant (cancer). The presacral space may contain one of several kinds. The most common is sacrococcygeal teratoma. Others are retrorectal hamartoma (tailgut cyst), schwannoma, ganglioneuroma, and ependymoma.
Is the presacral space a clinically important space?
The presacral space is a clinically important space that is relevant to multiple disciplines and lies at the intersection of the axial skeleton, neural axis, and pelvic soft tissues.
What are the anatomic boundaries of the presacral masses?
Its anatomic boundaries include the rectum anteriorly; the presacral fascia, sacrum, and coccyx posteriorly; and the levator ani inferiorly ( Fig 1 ). The presacral fascia extends inferiorly and separates the presacral space from the supralevator space ( 1 ).
Are there any symptoms of a presacral tumor?
Symptoms are often non-specific (are often found in many other diseases and conditions) making presacral tumors difficult to diagnose. In addition there may be no symptoms. Some symptoms that associated with presacral tumors include: Pain in the lower back or rectal/pelvic area