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Erschienen in: Abdominal Radiology 11/2019

16.04.2019 | Special Section: Rectal Cancer

Mucinous rectal cancer: concepts and imaging challenges

verfasst von: Natally Horvat, Thomas A. Hope, Perry J. Pickhardt, Iva Petkovska

Erschienen in: Abdominal Radiology | Ausgabe 11/2019

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Abstract

Rectal adenocarcinoma with mucinous components is an uncommon type of rectal cancer with two distinct histologic subtypes: mucinous adenocarcinoma and signet-ring cell carcinoma. Mucin can also be identified as pattern of response after neoadjuvant treatment. On imaging modalities, mucin typically demonstrates high signal intensity on T2-weighted images, low attenuation on computed tomography, and may be negative on 18-fluorodeoxyglucose positron emission tomography. After neoadjuvant CRT, cellular and acellular mucin share similar imaging features, and differentiating them is currently the main challenge faced by radiologists. Radiologists should be aware of pros, cons, and limitations of each imaging modality in the primary staging and restaging to avoid misinterpretation of the radiological findings.
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Metadaten
Titel
Mucinous rectal cancer: concepts and imaging challenges
verfasst von
Natally Horvat
Thomas A. Hope
Perry J. Pickhardt
Iva Petkovska
Publikationsdatum
16.04.2019
Verlag
Springer US
Erschienen in
Abdominal Radiology / Ausgabe 11/2019
Print ISSN: 2366-004X
Elektronische ISSN: 2366-0058
DOI
https://doi.org/10.1007/s00261-019-02019-x

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