Prashanth Panta1, Neil Stone2. 1. Department of Oral Medicine and Radiology, Malla Reddy Institute of Dental Sciences, Suraram X Roads, Jeedimetla, Quthbullapur, Hyderabad, Telangana 500055, India. Electronic address: maithreya.prashanth@gmail.com. 2. Hospital for Tropical Diseases, University College London Hospitals NHS Foundation Trust, London W1T 7NF, UK.