Locally metastatic mucinous rectal adenocarcinoma: Imaging diagnosis with DW-MRI in comparison with PET-CT
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- Published online on: March 29, 2012 https://doi.org/10.3892/ol.2012.663
- Pages: 1311-1313
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Abstract
A 56-year-old male patient with locally advanced mucinous rectal cancer underwent neoadjuvant chemoradiotherapy. Follow-up imaging with positron emission tomography‑computed tomography (PET‑CT) revealed a local response to chemoradiotherapy, whereas diffusion-weighted magnetic resonance imaging (DW‑MRI) showed newly presented sacral bone metastasis. Histopathologically confirmed bone metastasis and the local tumor were surgically removed. Repeat DW‑MRI revealed tumor recurrence in the sacral excision zone eight months after surgery, which was reconfirmed by histopathology. This case shows the superior imaging ability of DW‑MRI in the diagnosis of mucinous tumors in comparison to PET-CT.
