Complex sentence: This observation occurs because gallstones are formed over an extended period of time, resulting in a shrunken, fibrotic gallbladder which does not distend easily and is less likely to be palpable on exam.
Split into simpler sentences: This observation occurs because gallstones are formed over an extended period of time, resulting in a shrunken, fibrotic gall bladder which does not distend easily. This shrunken gallbladder is less likely to be palpable on exam.