Fig. 1
figure 1

Sagittal (a) and axial (b) fused PET-CT images and coronal maximum intensity projection of 68GA-PSMA PET (c) showing intense PSMA binding in adenoid cystic carcinoma metastases. Immunohistochemistry of the primary tumour showed intense PSMA expression mainly in adenoid cystic carcinoma tumour cells (d, arrows)