PMC2827428_01
Pelvic computer tomography shows a presacral heterogeneous mass composed of cystic component, soft-tissue elements, fatty tissue and calcifications, without evidence of bone destruction (arrows indicate the tumor).
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F1
A computer tomography (CT) scan of the pelvic area showed that the rectum and urinary bladder were displaced anteriorly by a mixed-type mass with soft tissue elements, inhomogeneous fatty tissue and calcifications, extending from the presacral area to below the coccyx (Figure 1).
Magnetic resonance imaging scans of the axial, coronal and midline saggital areas show a 6 x 5 x 4.5 cm mass of heterogeneous signal intensity, located anterior to the distal sacrum and coccyx (arrows indicate the tumor).
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F2
However, the lesion did not appear to be attached either to the sacrum or to the rectum (Figure 2).
Intra-operative macroscopic appearance of the tumour, before and after removal (arrows indicate the tumour).
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F3
During laparotomy, a 5 cm mass was found posterior to the rectum and anterior to the sacrum, extending between the anal sphincters (Figure 3).