The combination of 13N-ammonia and 11C-methionine in differentiation of residual/ recurrent pituitary adenoma from the pituitary gland remnant after trans-sphenoidal Adenomectomy

This study aimed to assess the clinical usefulness of 13N-ammonia and 11C- Methionine (MET) positron emission tomography (PET)/ computed tomography (CT) in the differentiation of residual/recurrent pituitary adenoma (RPA) from the pituitary gland remnant (PGR) after trans-sphenoidal adenomectomy.