Fig. 2
From: Ectopic sphenoidal ACTH-secreting adenoma revealed by 11C Methionine PET scan: case report
Co-registered magnetic resonance imaging (MRI) and 11C-methionine positron emission tomography (PET) performed after two unsuccessful pituitary surgeries. A Coronal view showing normal and homogeneous tracer uptake within residual pituitary parenchyma (between arrows); B Coronal view on a slightly more posterior view than Fig. 2A showing intense tracer uptake within the posterior sphenoid mass (large arrow), SUVmax at 3.3; C Axial transverse view showing similar features as Fig. 2B. D 68Ga-Dotatate-PET/CT showing normal uptake at the pituitary level (thin arrow) and no uptake of the tracer in the posterior sphenoid mass (large arrow)