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. Author manuscript; available in PMC: 2020 Nov 1.
Published in final edited form as: Abdom Radiol (NY). 2019 Nov;44(11):3743–3750. doi: 10.1007/s00261-019-02051-x

Figure 2. Serial rectal MRIs during total neoadjuvant therapy for locally advanced KRAS G12D rectal cancer.

Figure 2.

(Left) Baseline axial T2-weighted image shows large circumferential tumor with surrounding lymph nodes. (Center) Post-induction chemotherapy axial T2-weighted image shows moderate response with decreased tumor size but persistent tumor extending through mesorectum to contact the right seminal vesicle (arrow). (Right) Post-chemoradiotherapy axial T2-weighted image shows new edema of the rectal wall (long arrow) with little to no decrease in tumor in prior location (arrow).