Neck Lump Assessment and Treatment in Sydney

A neck lump is any swelling or mass that develops in the neck region. While many neck lumps are caused by benign conditions such as reactive lymph nodes or cysts, a persistent neck lump in an adult can be a sign of cancer and should always be investigated by an ENT specialist. Early assessment is critical for diagnosis and timely treatment.

What Causes Neck Lumps?

The cause of a neck lump depends on the patient's age, the lump's location, and associated symptoms. Neck lumps can be broadly categorised as:

Inflammatory and Infectious

Reactive lymphadenopathy: the most common cause, where lymph nodes swell in response to infections in the throat, teeth, ears or scalp. Usually tender and resolves within 2 to 3 weeks
Viral infections: Epstein-Barr virus (glandular fever), cytomegalovirus and HIV can cause persistent lymph node swelling
Bacterial lymphadenitis: infected lymph nodes that may form an abscess, requiring antibiotics or drainage
Tuberculosis (TB): mycobacterial infection can cause chronic neck lymphadenopathy, particularly in at-risk populations

Congenital (Present from Birth)

Branchial cyst: a smooth, painless cyst in the lateral neck, usually presenting in young adults
Thyroglossal duct cyst: a midline neck lump that moves upward when the tongue is protruded, typically presenting in children or young adults
Dermoid cyst: a benign midline lump present from birth

Neoplastic (Tumour-Related)

Metastatic squamous cell carcinoma: cancer spreading to neck lymph nodes from a primary site in the mouth, throat, larynx or skin of the head and neck
Lymphoma: cancer of the lymphatic system, presenting as painless, rubbery lymph node enlargement, often with night sweats, weight loss and fevers
Thyroid nodules and thyroid cancer: lumps in the front of the neck that move with swallowing
Salivary gland tumours: lumps in the parotid or submandibular gland region

Other Causes

Lipoma: a soft, movable fatty lump under the skin
Sebaceous cyst: a firm lump arising from a blocked skin gland
Carotid body tumour (paraganglioma): a rare tumour at the carotid artery bifurcation

Warning Signs

Certain features of a neck lump raise concern and warrant urgent investigation:

A lump that has persisted for more than three weeks
A hard, firm or fixed lump that does not move freely
A painless lump that is gradually enlarging
A lump in an adult over 40 years of age
Associated sore throat, hoarseness, difficulty swallowing or ear pain
Unexplained weight loss, night sweats or persistent fever
A history of smoking or heavy alcohol use
A history of skin cancer on the head, face or scalp

The key clinical rule is: a neck lump in an adult persisting beyond three weeks is malignant until proven otherwise. Urgent specialist referral is essential.

Diagnosis

At Central Sydney ENT, our head and neck surgeons conduct a thorough investigation for all persistent neck lumps:

Clinical examination: Assessment of the lump's size, location, consistency, mobility and tenderness. A full head and neck examination including the mouth, throat, nose and ears is performed to identify a potential primary site.

Flexible nasendoscopy: A thin camera passed through the nose to examine the nasopharynx, oropharynx, hypopharynx and larynx. This is essential to identify or exclude a mucosal primary cancer that may be causing a metastatic neck lump.

Ultrasound: Ultrasound provides detailed imaging of the lump, surrounding lymph nodes and nearby structures. It guides fine needle aspiration biopsy for accurate sampling.

Fine needle aspiration biopsy (FNAB): A thin needle is used to extract cells from the lump for cytological analysis. This is the most important initial diagnostic test and can usually determine whether the lump is benign, malignant or inflammatory.

CT and MRI: Cross-sectional imaging is ordered when malignancy is suspected, to determine the extent of disease, identify a primary cancer, and plan surgery.

PET-CT: Used when a primary cancer cannot be identified on clinical examination and imaging, or to stage confirmed malignancy.

Our head and neck surgeons, including Dr Alexander Zhang, Dr Arjuna Ananda, Dr Sam Hwang and Dr Philip Yeung, provide comprehensive neck lump assessment.

Treatment Options

Treatment depends entirely on the diagnosis:

Reactive lymph nodes: observation and treatment of the underlying infection; the nodes resolve as the infection clears
Congenital cysts: surgical excision is recommended to prevent recurrent infection (branchial cyst excision, Sistrunk procedure for thyroglossal cysts)
Metastatic head and neck cancer: neck dissection (surgical removal of affected lymph nodes), usually combined with treatment of the primary cancer and post-operative radiotherapy
Lymphoma: excision biopsy for diagnosis, followed by referral to haematology for chemotherapy and/or radiotherapy
Thyroid lumps: observation, thyroid lobectomy or total thyroidectomy depending on the biopsy result
Salivary gland tumours: parotidectomy or submandibular gland excision

When to See an ENT Specialist

You should seek a referral to an ENT specialist if:

You have a neck lump that has not resolved after three weeks
The lump is hard, painless or growing
You are over 40 years old with a new neck lump
The lump is associated with throat, voice or swallowing symptoms
You have unexplained weight loss, night sweats or fever alongside a neck lump
Your GP has identified a suspicious lump that requires further investigation

Related Conditions

Neck lumps are related to several other conditions managed at Central Sydney ENT:

Thyroid Nodules: thyroid lumps in the front of the neck are a common cause of neck masses
Head and Neck Cancer: a persistent neck lump may be the first sign of a mucosal primary cancer
Parotid Tumours: salivary gland tumours can present as upper neck or preauricular lumps

Common Questions

Neck Lump FAQ

When should I worry about a neck lump? +

You should seek specialist assessment for any neck lump that has persisted for more than three weeks, is hard or fixed (does not move when pressed), is growing, is painless, or is accompanied by other symptoms such as unexplained weight loss, night sweats, persistent sore throat, hoarseness, difficulty swallowing or a change in your voice. In adults over 40, a new persistent neck lump should always be investigated urgently.

What causes neck lumps? +

Neck lumps have many causes. The most common is reactive lymphadenopathy (swollen lymph nodes from infection), which is usually temporary and resolves. Other causes include thyroid nodules, salivary gland tumours, branchial cysts, thyroglossal duct cysts, lipomas, lymphoma, and metastatic cancer from the head and neck region or elsewhere. The location, size, consistency and associated symptoms help determine the cause.

How is a neck lump investigated? +

Investigation typically involves clinical examination of the neck, throat and voice box; ultrasound of the lump; fine needle aspiration biopsy (FNAB) to obtain cells for laboratory analysis; and blood tests. Depending on the initial findings, a CT scan, MRI or PET-CT may be ordered. For suspected malignancy, a panendoscopy (examination under anaesthesia) may be performed to identify a primary cancer.

Can a neck lump be cancer? +

Yes. While most neck lumps are benign, a persistent neck lump in an adult can represent metastatic squamous cell carcinoma from a head and neck primary cancer, lymphoma, thyroid cancer, or metastatic disease from elsewhere. The risk is higher in adults over 40, smokers, heavy drinkers, and those with associated symptoms. This is why prompt specialist investigation is important.

Does Central Sydney ENT investigate and treat neck lumps? +

Yes. Central Sydney ENT has fellowship-trained head and neck surgeons who comprehensively investigate and manage neck lumps. We offer in-clinic flexible nasendoscopy, coordinate ultrasound and fine needle aspiration, and perform surgical excision and neck dissection when required. We see patients across seven Sydney locations including Burwood, Campbelltown, Gregory Hills, Ultimo, Drummoyne, Hunters Hill and Miranda.