Then it must be a TUMOR.
The Big Bang Theory Season 2, Episode 10
Except when they get a TUMOR.
Then you never hear the end of it.
The Big Bang Theory Season 2, Episode 15
(IN HIGH-PITCHED VOICE)
Sure sounds like a TUMOR...
The Big Bang Theory Season 2, Episode 10
...and if you disagree, I recommend
a CAT scan to look for a TUMOR...
The Big Bang Theory Season 1, Episode 10
a TUMOR can remain
the exact same size it was before
Breaking Bad Season 2, Episode 9