For the second time, we've received
CT scan results that initially seemed pretty discouraging, but that took
on a different light when our oncologist examined them and consulted the senior
radiologist in the clinical trial that I'm in to get his interpretation.
What the initial
scan report said was puzzling. My main tumor has continued to shrink; the other
existing tumors that in a previous scan had appeared to one radiologist
to be growing -- but that our oncologist and the clinical trial
radiologist had interpreted as liquefying (i.e., dying) -- are stable. All this
is encouraging. But meanwhile, since my previous scan in November,
the latest scan shows a brand-new area, 5 cm in diameter -- which makes it my
biggest -- that has suddenly appeared. The initial report said there was a 75 %
chance this was a tumor, and a 25 % chance that it is dead cells or fat
cells.
You can see why
this is odd. The reason that the largest existing tumor is shrinking, and the
other existing tumors are not growing, is presumably the chemotherapy I'm
getting. But with that same chemotherapy, why would a new tumor suddenly and
rapidly grow? One possibility is that the new "tumor" actually isn't
a tumor at all, and our oncologist and the clinical trial radiologist see that
as a significant possibility. The radiologist’s ultimate judgment was that the
CT scan is "equivocal," so we really don't know yet whether this is a
new tumor or not.
That means the
next step is to find out what this thing is. The best way to do that apparently
is to do another of the MRI scans (with some sort of special augmentation
compared to regular MRI's) that the clinical study uses. That will take place
next week, and we’ll discuss the results with our oncologist as soon as they’re
available.
If it is a
tumor, this is bad but, after talking with our oncologist about it this week, we're
not discouraged. One reason is that this tumor's behavior (assuming it's a
tumor) is so unlike the other tumors' response to the medication. That
suggests that it may not be quite the same cancer as my other tumors -- and
that would be quite plausible, because cancers mutate as a result of time and
of their interaction with chemotherapy, of which I've now had a lot. That
raises the possibility that this new growth may be the result of a mutation
that there is an immunotherapy treatment for -- unlike my existing tumors,
which were sadly lacking in attackable mutations. This wouldn’t be our next step,
but it would be nice to have it available in reserve.
Even if that's
not so, our oncologist reminded us that my cancer has seemed, right from the
beginning, to be responsive to chemotherapy, and she made clear that she's
still got a number of chemotherapy drugs left to employ. And there's also the
possibility of treatment directed at destroying this particular tumor;
apparently even though I'm basically stuck with an inoperable disease, a
particular tumor (like this one) might still be attacked in other ways. Our
oncologist mentioned something called ablation, which as I understand it uses
heat made by radio waves to kill the tumor, and there are other targeted-attack
treatments as well.
So that's the
news. As Teresa says, we've always known that this cancer was likely to zig and
zag -- even though we'd have been willing to be an exception to that rule.
Meanwhile, on a day-to-day basis what’s most occupying my attention is my
digestion. I’ve written about the issues I’ve been having on this front over
the past months (here, here and here), and unfortunately they’ve continued, if anything more
intensely.
Whether these have anything directly to do with the developments shown
in the latest scan still isn’t clear – not surprisingly, since it isn’t clear
what those developments are. Our oncologist thinks the digestive issues are the
product of some sort of transient blockage, but that doesn’t explain what the
cause of the blockages is. In any case, we haven’t yet figured out how to stop
them, though I’m doing my best to hydrate and to follow my “bowel regimen.”
The
good news in this regard is that these events are so episodic. Most of the time I feel reasonably
well, and I’ve been making progress on my research and writing. We also have
medical clearance to travel, and I look forward to reporting on future trips!
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