A patient has a single oval, mobile, non‑tender, marble‑sized lump in the right upper neck with a runny nose and no other symptoms; is this a cervical lymph node?

Is This a Lymph Node?

Yes, this is almost certainly a reactive cervical lymph node responding to the upper respiratory infection causing the runny nose. The clinical features—oval shape, mobility, non-tender character, and concurrent rhinorrhea—are classic for benign reactive lymphadenopathy associated with viral upper respiratory infection. 1

Why This is Likely a Reactive Lymph Node

The presence of concurrent upper respiratory symptoms (runny nose) strongly suggests an infectious/inflammatory etiology. Reactive cervical lymphadenopathy commonly occurs with respiratory infections, and the lymph node characteristics described are reassuring for a benign process. 1

Reassuring Features Present:

• Mobile (not fixed to adjacent tissues) 1
• Non-tender (though tenderness can occur with both benign and malignant nodes) 1
• Oval shape (normal lymph nodes are typically oval with short-to-long axis ratio <0.5) 2
• Associated with active upper respiratory symptoms (runny nose suggests infectious trigger) 1

Critical Assessment for Malignancy Risk

However, you must still assess for high-risk features that would warrant immediate further workup, as most adult neck masses are neoplastic rather than infectious. 3, 4

High-Risk Features to Evaluate (American Academy of Otolaryngology):

Size matters: Is this truly "marble-sized"?

• If >1.5 cm, this increases malignancy risk significantly 1, 3
• Lymph node metastases cause nodal enlargement beyond 1.5 cm 1

Duration is critical:

• If present ≥2 weeks or uncertain duration, malignancy risk increases 1, 3
• A persistent mass is more likely to be malignant 1

Consistency on palpation:

• Firm texture suggests possible malignancy (malignant nodes are firm due to absence of tissue edema) 1
• Soft texture is more consistent with inflammatory/infectious etiology 1

Additional Red Flags to Screen For:

Patient demographics and history: 1

• Age >40 years
• Tobacco and/or alcohol use
• History of head and neck malignancy

Associated symptoms requiring immediate concern: 1

• Pharyngitis or throat pain
• Dysphagia (difficulty swallowing)
• Otalgia on the same side as the neck mass
• Voice changes
• Unexplained weight loss
• Hearing loss on the same side
• Nasal obstruction or epistaxis on the same side

Management Algorithm

If NO High-Risk Features Present:

Observe with close follow-up. The lymph node should resolve completely as the upper respiratory infection clears, typically within 2-3 weeks. 1

• Reassess within 2 weeks 1
• The mass must completely resolve—partial resolution may represent infection in an underlying malignancy 1
• If not completely resolved at 2 weeks, proceed to imaging and further workup 1
• Reassess again 2-4 weeks after complete resolution to monitor for recurrence, which would prompt definitive malignancy workup 1

If ANY High-Risk Features Present:

Proceed immediately to contrast-enhanced CT or MRI of the neck. 1, 3

• Contrast-enhanced CT is the preferred initial imaging modality for evaluating a neck mass in adults, particularly given malignancy risk 1
• Intravenous contrast is essential for detecting necrosis and assessing relationship to major vessels 1
• Do NOT give empiric antibiotics without clear evidence of bacterial infection (warmth, erythema, fever, tachycardia), as this delays malignancy diagnosis 1, 3

Critical Pitfall to Avoid

The single most dangerous error is assuming all neck masses with concurrent URI symptoms are benign. While reactive lymphadenopathy is common with respiratory infections, approximately half of all persistent adult neck masses are malignant. 1, 4

Never prescribe antibiotics without clear signs of bacterial infection (fever, warmth, erythema, tenderness), as this creates false reassurance and delays cancer diagnosis. 1, 3 If antibiotics are given for presumed infection, the patient MUST be reassessed within 2 weeks, and the mass must completely resolve. 1