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Fig. 6 | Insights into Imaging

Fig. 6

From: Response evaluation after neoadjuvant treatment for rectal cancer using modern MR imaging: a pictorial review

Fig. 6

Signet-ring tumor. Transverse (a), sagittal (b) and coronal (c) T2-weighted MR images, and CT image (d) of a male patient with a signet-ring carcinoma of the rectum. Note the typical diffuse hypointense thickening of the rectal wall with extensive tumor infiltration in the mesorectal fat (arrows in b), that extends all the way up cranially into the mesosigmoidal fat (arrows in c). There are several large metastatic lymph nodes both in the pelvis (circles in a) as well as para-aortic in the upper abdomen (circles in d). At the time of diagnosis, the patient presented with extensive peritoneal metastases (arrows in d). Palliative chemotherapy was started, shortly after which the patient deceased

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