Hi,around 3 months ago,my friend had an annus surgery (to stop the pain and blood when entered to toilet)now after 3 mths of pain he discovered something like ball near the anus more to the left side, he did an MRI with the following result
HI. Thanks for your concern and understanding of the subject. The abscess / lump which has recurred after the first surgery like this has to be taken and treated as fistula-in-ano unless proved otherwise. The biopsy thereafter a surgery will confirm the diagnosis, underlying pathology and so on. He has to undergo another surgery. It is not much dangerous but notoriously recurrent / may not be a cancer.