46-year-old woman with FIGO stage 1 vulvar adenoid cystic carcinoma of the left Bartholin gland. Axial PET-CT shows an intensely FDG-avid soft tissue mass (arrow). There was no evidence of lymphadenopathy or distant metastases (not shown). The pathologic staging was pT. 1b N0 M0. The mass was excised and the patient subsequently received radiation therapy with chemosensitization