The child has a case of chicken pox.

The police are treating his death as a case of murder.

Are the Chinese GDP figures a case of the boy crying wolf?

This case also applies to other cases.

This is the case.

That is not the case.

That's not the case.

The relative pronoun 'that' has two states, a nominative case and objective case, but there is no possessive case.

This test case will have a significant impact on similar cases.

The eggs in this case are fresher than those in the other case.