isn't what your CRS is referring to technically an abscess? Had the MRI last night and just by looking at it myself could see the abscess. Received the call this AM from my CRS and I was right. Small abscess but mostly swollen scar tissue. Like I said before, I almost want to just leave it to avoid fistula, but I get I have to get it drained. The MRI also picked up on severe endometriosis which I always felt has effected my perianal region/ bowels. So I'm right but I wish I wasn't.
In your case I would do the MRI now. If there is a small abscess catching it early is better than never. I think the MRI is worth it if someone will approve it. Good luck, hoping you're ok. I'm trying not to get too down but I thought the LIS was the end of the nightmare for me but it really just caused more issues. I'd rather live with the fissure than fistulae.