Accumulation of C-methionine in the normal pituitary gland on C-methionine PET.

Background For pituitary tumors, positron emission tomography (PET) with C-methonine (MET) has been reported as feasible to facilitate diagnosis. MET is well-known to accumulate in the normal pituitary glands, but almost no studies have examined the degree of MET accumulation in the normal pituitary gland. Purpose To investigate accumulation of MET in normal pituitary gland on PET/CT.

PET/CT findings for tumors in the base of the skull: comparison of 18 F-FDG with 11 C-methionine.

Background: Positron emission tomography/computed tomography (PET/CT) using 18 F-fluorodeoxyglucose (FDG) has been used to characterize various malignancies. There are few reports regarding the use of 11 C-methionine (MET)-PET/CT to characterize tumors in the skull base.

Purpose: To compare MET-PET/CT with FDG-PET/CT in cases of tumors of the skull base.