Hi i am Dr Ahmed Aly
thanks for using healthcaremagic site ,
I had gone through your question and understand your concerns ..
Ankle sprains may cause a minor tear in a ligament , a muscular sprain , a minor fissure in all cases it causes swelling around the ankle .
That dent could be the residue of the inflammation that will subside within time , it could be a calcified bone formation if you had a minor fissure and that is normal and will subsides after healing process takes place .
For now you may use an ankle support , NSAIDS like
advil when needed , hot massages with topical gels and elevation will be helpful in most of cases .
If the swelling persists i suggest
X ray and
MRI to rule any fissures or
fractures for proper evaluation and management .
Please click and consider a 5 star rating with some positive feedback if the information was helpful. Wish you good health,
Any further clarifications feel free to ask.