Skull base has clinically unique importance:it is the anatomic junction of the neural and facial viscerocranium,supports human brain and supports that contains the neurovascular structures entering or exiting the skull,it divided into anterior,middle and posterior skull base.Skull base tumors are a
The project will consist of a multicenter, open-label, randomized study (PROBE design) in patients with CCM to be randomized in a 2:1 ratio (propranolol:control) and will allow comparison of 2 groups: one receiving propranolol (recommended initial dose is 40 mg bid, to be uptitrated to 80 mg bid,