Rectal MRI after neoadjuvant chemoradiation therapy: a pictorial guide to interpretation
| Autor: | Shanna A. Matalon, Daniel A. Souza, Jason L. Hornick, Leslie K. Lee, Stuart G. Silverman, Renata R. Almeida |
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| Rok vydání: | 2021 |
| Předmět: |
medicine.medical_specialty
Radiological and Ultrasound Technology medicine.diagnostic_test business.industry Colorectal cancer Urology Gastroenterology Magnetic resonance imaging Hepatology medicine.disease 030218 nuclear medicine & medical imaging Resection 03 medical and health sciences 0302 clinical medicine 030220 oncology & carcinogenesis Internal medicine medicine Adenocarcinoma Radiology Nuclear Medicine and imaging Histopathology Radiology business Pathological Complete response |
| Zdroj: | Abdominal Radiology. 46:3044-3057 |
| ISSN: | 2366-0058 2366-004X |
| DOI: | 10.1007/s00261-021-03007-w |
| Popis: | Magnetic resonance imaging (MRI) is the current reference standard imaging modality for restaging rectal cancer after neoadjuvant chemoradiation and is used to guide clinical management decisions. This pictorial essay provides an illustrative atlas of the key MRI features used to assess rectal cancer after treatment. MRI findings of residual tumor including non-mucinous, mucinous, and signet-ring cell adenocarcinoma subtypes are correlated with histopathology. Imaging appearances of treatment changes that mimic residual tumor in the setting of confirmed pathological complete response at resection are illustrated. Treatment complications are also shown. Knowledge of these imaging findings and their importance may help radiologists comply with all elements of the structured reporting templates proposed by the Rectal Cancer Disease Focused Panel of the Society of Abdominal Radiology and by the European Society of Gastrointestinal and Abdominal Radiology. |
| Databáze: | OpenAIRE |
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