Suggest Tests To Diagnose Frank's Sign

Question: As you're probably aware, there's an earlobe crease phenomenon known as Frank's Sign that consists of a prominant vertical(ish) crease on the lower part of the ear lobe that can be indicative of heart disease. From what I've read, this crease is generally described as "pronounced" and only really applicable if it's around 45 degrees in angle from the lower part of the canal all the way to the lobe. There's a YouTube video that seems to indicate similar creases at other angles are not of the same concern, but I'm not sure how true that is - see https://www.youtube.com/watch?v=e9yIiidZOWU

I noticed my mom, at 67, has it quite prominently in both ears, and I'm not sure if I should mention it to her. She's already seeing a doctor, on aspirin therapy, and working to manage her high cholesterol. My first question is if this is important information for her, or if given she's already seeing a doctor, this is something that might worry her more than necessary and wouldn't be helpful. I've also read than in people above 60, this isn't a concern as it's a part of the natural aging process.

Secondly, I've been trying to determine if I have this starting. At 33, I see no extremely prominent fold-like crease (ie, nothing like a creased piece of paper) like I see on mom or pictures used as examples of the phenomenon. However, depending on the light, etc., I can see a slight indentation where this crease would be (at least where it would start), and with the right lighting, I can almost see where it would lead. However, it doesn't seem to go all the way to the edge (rounded part) of the earlobe like in most of the pictures, definitely isn't deep, and it's hard to assess the angle; it seems like sometimes I can sort of see it and sometimes I don't think there's anything there. Is some indentation or slight wrinkling around this area something everyone has, or is this concerning as the possible beginnings of Frank's Sign?

I should note my father is Indian (Eastern, from the country of India), though my mother is Caucasion, and I've heard this isn't a relevant feature in Asian people, so I'm not sure if that comes into play at all with me.

Thank you. I may mention it to my mom and have her talk to her doctor about it. But I'll try not to alarm her too much either. Unfortunately, in my mom it looks pretty textbook from everything I've seen. Is it any less of a concern since she is 67, or is it still alarming no matter the age?

Just to clarify as per my own ears, is a slight wrinkle/indentation in the area below the ear canal normal as we age? Is it only "Frank's Sign" if it is fairly deep and goes completely across from the lower part of the canal to the edge of the rounded part of the lobe? As I said, it depends what I see based on lighting (which is difficult in a self-photo of the ear), but I'm glad you don't notice anything - would you think it to be fairly unmistakeable (even in a photo) if it was there?

Thanks!