Lord have mercy! St. Nektarios pray for Fr. Seraphim!
Along with prayers to St. Panteleimon, please ask also for the intercession of St. Nektarios who is known specifically for his help to those with cancer. Just a few weeks ago I was also found to have a cancerous tumor, and it just so happened that the surgery to remove it was scheduled for the feast of St. Nektarios on the New Calendar (Nov 9). The night before surgery I was able to celebrate Vespers at the nearby Greek Church dedicated to St. Nektarios, venerated his relics, and received anointing from the lampada that burns before his relics. Thank God, in my case the surgery went well, the cancerous tumor was removed, and it did not spread. Now I just need a little radiation to make sure everything is taken care of, and all should be well. May our merciful God, through the intercession of Sts. Panteleimon and Nektarios, also grant good results and a speedy recovery to Fr. Seraphim!