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What causes presacral soft tissue thickening?

What causes presacral soft tissue thickening?

A presacral tumor may be caused by: Congenital conditions present from birth. Hereditary disorders such as Currarino syndrome. Cancer that has metastized from another site in the body.

What is a presacral space lesion?

Introduction: Presacral tumors are a rare group of heterogeneous lesions located in a potential space referred to as the retrorectal or presacral space. Lack of characteristic symptomatology and difficult anatomical localization make the diagnosis and management challenging for a surgeon.

What is presacral mass?

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.

What is the presacral region?

The presacral space is the area between the rectum and lowest part of your the spine, which is called the sacrum. 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.

What causes presacral edema?

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 a 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 Currarino syndrome?

Currarino triad or syndrome is an autosomal dominant hereditary condition which is characterized by the triad of sacral agenesis abnormalities (abnormally developed lower spine), anorectal malformation (most commonly in the form of anorectal stenosis) and presacral mass consisting of a teratoma, anterior sacral …

What causes presacral fluid?

Where is the mesorectal fascia?

The mesorectal fascia is a layer of connective tissue enclosing the perirectal fat that surrounds the rectum. It is an important anatomical structure in rectal cancer staging, as it forms the circumferential resection margin for the non-peritonealised portion of the rectum.

What is the Puborectalis?

The puborectalis is a U-shaped muscle that attaches to the pubic tubercle (“the pubic bone”) and wraps around the rectum – under normal circumstance, this muscle is contracted, maintaining a “bend” in the rectum and contributing to stool continence.

What are the symptoms of a presacral mass?

Developmental cysts tend to occur in middle-age, are associated with anorectal malformation and sacral bone defects and are generally benign. They are usually asymptomatic, but can become infected, causing pain and discomfort. Other symptoms are associated with mass effect, occasionally causing bowel and bladder symptoms [ 7 ].

What should be the normal presacral space width?

The upper limits of normal for the presacral space width is 15 mm in patients younger than 45 years 2. However, some patients have measurements over 15 mm with no apparent reason (fewer still have measurements above 20 mm), which increases with older age. Factors such as sex and weight of the patient should also be taken into consideration 2.

What causes an increase in the presacral space?

The presacral space contains a variety of tissue: An increase in the width of the presacral space measurement is considered indicative of pathology in the rectum or other structures in the pelvis. This alteration is usually seen in barium enema studies and on plain film.

Where is the presacral space in the body?