Evaluation and Management of Neck Enlargement in Adults

Initial Assessment and Risk Stratification

The American Academy of Otolaryngology-Head and Neck Surgery recommends beginning with a focused history and physical examination to stratify malignancy risk, then proceeding with imaging and tissue diagnosis for high-risk patients, avoiding empiric antibiotics unless clear signs of bacterial infection are present 1, 2
Historical red flags for malignancy include a mass present for 2 weeks or more without significant fluctuation, no history of infectious etiology, age over 40 years, tobacco use or alcohol abuse, HPV-related risk factors, prior head and neck cancer or radiation exposure, and immunocompromised status 1, 3, 4, 5, 6, 7
Associated symptoms suggesting malignancy include hoarseness, otalgia, or hearing loss, dysphagia, odynophagia, or weight loss, hemoptysis or blood in saliva, intraoral swelling or ulceration, and unilateral nasal congestion or epistaxis 6

High-risk physical examination features include fixation to adjacent tissues, firm consistency, size greater than 1.5 cm, ulceration of overlying skin, and a nontender mass 1, 3, 4, 6
Required examination components include scalp and face inspection, oral cavity examination, oropharynx visualization, and neck and thyroid palpation 6
Imaging with CT neck with contrast or MRI with contrast is recommended for high-risk patients 1, 3, 4, 8
Fine-needle aspiration (FNA) is preferred over open biopsy when diagnosis remains uncertain after imaging 1, 3, 4, 8

For high-risk patients, proceed immediately with targeted physical examination, imaging, tissue diagnosis, and special consideration for cystic masses 1, 3, 4, 5, 6, 8, 9
For low-risk patients, observation with structured follow-up is appropriate, including patient education on warning signs and documentation of a specific follow-up plan 1, 5, 7

Avoid empiric antibiotics unless clear signs of bacterial infection are present, as most adult neck masses are neoplastic, not infectious 1, 2, 3, 5, 8
Do not perform open biopsy before imaging completion, FNA attempt, and examination under anesthesia to identify the primary site 1, 4, 8, 10
Patient education requirements include explaining the significance of increased malignancy risk, the rationale for recommended diagnostic tests, and the expected timeline for specialist consultation 1, 3, 4, 7
Urgent specialist referral is warranted when high-risk features are present, with direct communication of urgency and ensuring thorough evaluation and follow-up within a short timeframe 7