27th February 2025

A 24-year-old male presents to his GP with a tender lump of the mandible. His younger brother

A 24-year-old male presents to his GP with a tender lump of the mandible. His younger brother was treated for osteosarcoma in childhood. His mother died at age 43 of breast cancer.

What is the most likely underlying gene mutation?

Select the SINGLE most appropriate option from the list below. Select ONE option only.