costalgia vs pleurodynia

costalgia and pleurodynia both are nouns.

Word	Noun	Adjective	Verb	Adverb
costalgia	Yes	No	No	No
pleurodynia	Yes	No	No	No

As nouns, costalgia and pleurodynia are synonyms defined as:

costalgia and pleurodynia: pain in the chest caused by inflammation of the muscles between the ribs

Other synonyms of costalgia include pleuralgia.

costalgia (noun)	pleurodynia (noun)
pain in the chest caused by inflammation of the muscles between the ribs	pain in the chest caused by inflammation of the muscles between the ribs