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CASE
Colonoscopy:
polipoid lesion of 1cm at the level of the linea dentata
Pathology: squamous cell carcinoma, invasion cannot be assessed
DW-MRI:
Diffusion restrictive lesion 37mm cranial from the anal verge, anteriorly and
laterally located (right side). Not clearly visible on T1/T2-weighted images
18
F-FDG PET/CT:
Moderate to strong hypermetabolism at the level of the anal canal
No lymph nodes or hematogenous metastases