CRH and pituitary gland adenoma: When MRI was negative or inconclusive, molecular imaging detected a pituitary adenoma in 100% (68Ga-DOTA-CRH), 67% (11C-Met and 68Ga-pentixafor), 22% (18F-FDG–PET after CRH stimulation), 17% (18F-FDG–PET) and 0 (13N-ammonia) patients.