many such cases

Meanings

1. Used to indicate that an occurrence is unsurprising, or that something is or was evident. Often sarcastic, mocking someone for believing that something is common, or otherwise tongue-in-cheek.
2. Used other than figuratively or idiomatically: see many, such, cases, indicating that there are many examples of something or that something is a common occurrence.

Etymology

From a Twitter post by Donald Trump (@realDonaldTrump) in 2014, popularized after his election as President of the United States in 2016: Healthy young child goes to doctor, gets pumped with massive shot of many vaccines, doesn't feel good and changes - AUTISM. Many such cases! The phrase itself has been rarely attested in literature, from at least the 19th century, primarily in medical or legal context.