Image Credit: med.stanford.edu

I checked into this matter and discovered that this issue takes place during the first trimester of a woman's pregnancy.

It's also found that Microtia ears can vary (in terms of looks or appearance).

The often result are miniature ears, and the ear lobe takes on a peanut-shaped like structure.

It's a rare phenom that takes place in 1 out of 5,000 births.

I didn't even think about how the severity of the condition depending on the mother's (and no doubt the child's father) ethnic background.

So, ethnicity is said to play a deciding factor with Microtia ear physiological development.

Majority of the cases are more common with male offspring.

It was an interesting read I ran across at https://med.stanford.edu/ohns/OHNS-healthcare/earinstitute/conditions-and-services/conditions/microtia.html that talked about the Microtia issue.

I feel that building artificial ears with the aid of stem cell structuring and 3D-Formation of inner ear is a remarkable breakthrough!

I really like the information you provide here on the 3D/Stem Cell reconstruction topic matter @mauromar.

You present a great detailed post!

Thank you for sharing! :D