A 10-year-old male child with sho stature presented to the pediatric OPD with complaints of frequent headaches over the past 6 months along with slowly progressive loss of vision of the right eye. Lately the child has also staed having trouble in walking along with frequent mood changes and excessive thirst. MRI brain showed a tumour in the sellar region which was resected. HPE examination showed reticular epithelial cells that have appearances reminiscent of the enamel pulp of developing teeth along with calcifications and wet keratin nodules. The gene involved in causing the above condition is also involved in causing which other condition: -