text: A positron emission tomography (PET scan) may be diagnostic of spread of<unk>  cancer. 18-fluorodeoxyglucose positron emission tomography (FDG-PET) scanning is useful to identify the extent of cervical node metastasis.
option_0: Oral cancer other imaging findings
option_1: Laryngeal cancer other imaging findings
option_2: Nasopharyngeal carcinoma other imaging findings
option_3: Hypopharyngeal cancer other imaging findings
option_4: Oral cancer differential diagnosis
option_5: Epithelioid sarcoma physical examination
option_6: Laryngeal cancer other diagnostic studies
option_7: Laryngeal cancer differential diagnosis