my husband was experiencing a heavy feeling in his chest this morning so we called the onc and we were told to come in. he had a ct scan done and we were seen by the nurse practitioner. she said, ct scan doesn't show any shrinking of the tumor thus far (brandon has only had two treatments of chemo) but the pleural fluid is gone. my husband was upset at the news that the tumor didn't appear to be shrinking. the nurse said that it still very well could be shrinking but we would need the pet scan to determine this. we are having the pet scan done in approx three weeks (the half way point). she said that the mass may be dying but that it wouldn't show us this on the ct scan only on the pet scan. i feel confused. is this because the pet scan shows living and dead tissue and the ct scan only shows densities and masses? we don't know what to make of this.