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Work-up and diagnosis
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Standard work up includes proctoscopy
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Examination under anaesthetic (EUA) is necessary on
occasions in anal cancer to inspect and obtain biopsy
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Pelvic MRI mandatory for loco-regional staging
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TRUS if MRI not available but difficult in advanced anal
lesions
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Whole body CT to determine if metastatic disease
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Positron emission tomography (PET/CT) scan