PMC4430219_01
(a) Sagittal section of the abdominopelvic CT scan with the red arrow indicating the tailgut cyst. (b) Axial sections of the abdominopelvic CT scan, showing the tailgut cyst with wall calcification.(For interpretation of the references to color in the text, the reader is referred to the web version of this article).
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The CT scan showed a left-lying, well-circumscribed, rounded presacral mass at the level of the 4th sacral vertebra, measuring 3.4 x 2.8 cm (red arrow in Fig. 1a and b), with a central liquid component, a peripheral tissue density of 31HE, and a fine calcification at the right rim.
Specimen after in toto surgical excision.
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The surgical specimen was sent for pathological examination that revealed a tailgut cyst (Fig. 2).