Hyperkeratosis ?
If it's symmetric it sounds like a systemic problem. not fungal , topical infection.
could be lots of things. maybe fungal, which is common on elbows. Do you spend a lot of time in the sun? Or did you in the past? Age spots? many many possibilities
Make an appointment with your dermatologist for a good screening, diagnosis, and treatment plan.
Are you sure they are not moles?
There is also a condition called seborrheic keratosis; and then there are various types of bacterial and fungal infections such as tinea.