MRI
Sagittal T2
Axial T1
Axial T2
Axial T1 fat sat
Axial T2 fat sat
Coronal T1
Coronal T2 fat sat
Axial DWI
Sagittal T1 C+ fat sat
Axial T1 C+ fat sat
Axial T2
Axial T1 C+ fat sat
Mid rectal irregular circumferential wall thickening with linear extension beyond the serosa into the perirectal fat, for about a length of 4cm, approximately 8cm from the anal verge. The mass appears of low signal intensity on T1, intermediate signal on T2 with post-contrast enhancement and diffusion restriction. No extramural venous invasion.
No regional lymphadenopathy.
No distant metastasis.