A 48 year old man has a lump on his mandible. It has rapidly increased in size over the past 8 months. On examination, there is an induration of the skin overlying the mass. The mass is free and mobile. What is the SINGLE most appropriate investigations?
A. Fine needle aspiration (FNA) cytology
B. Computed tomography
C. Salivary immunoglobulin M (IgM)
D. Magnetic resonance imaging
E. Erythrocyte sedimentation rate (ESR)
Submandibular neoplasms often appear with diffuse enlargement of the gland. Any masses of this sort need to be investigated. In fact, any salivary gland swelling that is present for more than 1 month needs to be investigated or removed. Ultrasoundguided fine needle aspiration (FNA) cytology is used to obtain cytological confirmation.