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Diagnosis and staging
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A 48 years old male with a 4cm anal mass.
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Biopsy: Squamous cell carcinoma.
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Positive HPV 16 and HPV 53. HIV test:Negative
•
MRI: mass 3.6 cm. No involvement of external sphincter. No
enlarged inguinal or pelvic lymph nodes detected.
•
CT scan/PET scan: No metastases.
Squamous cell carcinoma of the anal
canal
cT2 cN0M0. Stage II.