Good news:
I was yesterday at the hospital and the tumour can be removed. The operation is friday or beginning of next week.
I hope he's home again for Eastern and will start his chemo therapy some time after the operation.
I think I was also dropped by that girl that I met the week my father got into the hospital the first time. I thought she showed interest in me and could become my girlfriend.
Oh well, life goes on. Thanks for posting in this thread, guys!