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Tailgut cysts: MRI findings

  • Magnetic Resonance
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Abstract

Magnetic resonance imaging (MRI) features of 11 surgically resected pelvic tailgut cysts were analyzed with reference to histopathologic and clinical data. Homogeneity, size, location, signal intensity, appearance and presence of septa and/or nodules and/or peripheral rim and involvement of surrounding structures were studied. Histological examination demonstrated 11 tailgut cysts (TGC), including one infected TGC and one TGC with a component of adenocarcinoma. Lesions (3–8 cm in diameter) were exclusively or partly retrorectal in all cases but one, with an extension down the anal canal in five cases. Lesions were multicystic in all patients but one. On T1-weighted MR images, all cystic lesions contained at least one hyperintense cyst. The peripheral rim of the cystic lesion was regular and non or moderately enhancing in all cases but the two complicated TGC. Nodular peripheral rim and irregular septa were seen in the degenerated TGC. Marked enhancement of the peripheral structures was noted in the two complicated TGC. Pelvic MRI is a valuable tool in the preoperative evaluation of TGC.

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Authors and Affiliations

  1. Department of Radiology, Hôpital Saint Antoine, 184, rue du Faubourg Saint-Antoine, 75571, PARIS Cedex 12, France

    V. Aflalo-Hazan, P. Rousset, M. Lewin & L. Azizi

  2. Department of Pathology, Hôpital Saint Antoine, 184, rue du Faubourg Saint-Antoine, 75571, PARIS Cedex 12, France

    N. Mourra

  3. Department of Radiology, Hôpital Robert Debré, Avenue du Général Koenig, 51092, Reims Cedex, France

    C. Hoeffel

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  1. V. Aflalo-Hazan
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  2. P. Rousset
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  3. N. Mourra
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Correspondence to V. Aflalo-Hazan.

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Aflalo-Hazan, V., Rousset, P., Mourra, N. et al. Tailgut cysts: MRI findings. Eur Radiol 18, 2586–2593 (2008). https://doi.org/10.1007/s00330-008-1028-4

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  • DOI: https://doi.org/10.1007/s00330-008-1028-4

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