distorted shape vs distortion

distorted shape and distortion both are nouns.

Word	Noun	Adjective	Verb	Adverb
distorted shape	Yes	No	No	No
distortion	Yes	No	No	No

As nouns, distorted shape and distortion are synonyms defined as:

distorted shape (noun)	distortion (noun)
a shape resulting from distortion	the act of distorting something so it seems to mean something it was not intended to mean
	the mistake of misrepresenting the facts
	a change for the worse
	an optical phenomenon resulting from the failure of a lens or mirror to produce a good image
	a change (usually undesired) in the waveform of an acoustic or analog electrical signal; the difference between two measurements of a signal (as between the input and output signal)
	a shape resulting from distortion