I read through this thread and I know this question has been asked, but for:
Are there any special, unique, personal, or challenging aspects of your personal background or circumstances that you would like to share with the Committee on Admissions, not addressed elsewhere (siblings/relatives at Penn, applying as a couple, educational environment, culture, ethnicity, etc.)
would a "diversity" essay work here? I'm a non-traditional applicant, and my diversity essay is centered around my experience in a non-medical field that I believe is highly applicable to medicine, and my current experience as a scribe in a unique (literally) medical practice. However, by the "aspects" they listed in parenthesis, it seems that's not what they're looking for... would be appreciative of your thoughts.