Neck Lumps & Thyroid Nodules in Singapore

Types of Neck Lumps

The neck contains a dense concentration of important structures — the thyroid gland, three pairs of major salivary glands, more than 200 lymph nodes, branchial arch remnants, blood vessels, and nerves. A lump can arise from any of them. The common categories we see in clinic are:

• Thyroid nodules — by far the most common, found in about 50% of adults on ultrasound; the vast majority are benign
• Reactive lymph nodes — from a recent throat infection, dental infection, or skin infection; the most common cause in children and young adults
• Salivary gland tumours — most arise in the parotid gland in front of the ear; usually benign (pleomorphic adenoma) but require excision for diagnosis
• Congenital cysts — thyroglossal duct cyst (midline), branchial cleft cyst (lateral); often present in young adulthood after an upper respiratory infection
• Lipoma and sebaceous cyst — soft, benign skin and subcutaneous lumps
• Lymphoma — painless, rubbery, often multiple node enlargement; needs prompt biopsy
• Tuberculous lymphadenitis — still seen periodically in Singapore, particularly in patients with travel or contact history
• Metastatic lymph node — a hard fixed lump in an adult, particularly a smoker, may be the first sign of a head and neck cancer (mouth, throat, larynx, nasopharynx, thyroid, or skin)

Thyroid Nodules — Common, Usually Benign

Thyroid nodules are extraordinarily common. Approximately 50% of adults are found to have at least one thyroid nodule on neck ultrasound, and the prevalence rises with age. The crucial statistic is that only around 5% of thyroid nodules turn out to be malignant after assessment. The ENT job is therefore not to remove every nodule, but to identify the small subset that need surgery and reassure the rest.

Ultrasound features that increase suspicion include hypoechoic appearance, irregular margins, microcalcifications, taller-than-wide shape, and abnormal lymph nodes in the neck. The TIRADS (Thyroid Imaging Reporting and Data System) score combines these features to guide whether a Fine Needle Aspiration is needed.

How is a Neck Lump Diagnosed?

A typical first-visit pathway at CENTAS is:

• Detailed history — duration, growth, pain, infections, smoking, family history of cancer, B-symptoms (fever, weight loss, night sweats)
• Clinical examination — site, size, consistency, mobility, tenderness, overlying skin, associated nodes; full ENT examination including nasoendoscopy to inspect the upper aerodigestive tract for a possible primary cancer
• Ultrasound of the neck — first-line imaging; characterises thyroid nodules, distinguishes solid from cystic, and assesses lymph nodes
• Fine Needle Aspiration (FNA) — performed under ultrasound guidance using a fine needle to sample cells. It is quick (about 5 to 10 minutes), well-tolerated, and provides a cytology diagnosis within a few days
• Blood tests — thyroid function (TSH, free T4), calcium, and where appropriate thyroid antibodies
• CT or MRI scan — only required for selected cases (large goitres extending into the chest, suspected malignant deep neck masses)

The Bethesda Classification of FNA Results

Thyroid FNA cytology reports use the internationally standardised Bethesda System, which grades each sample from I to VI based on the risk of malignancy. The categories — and their typical management — are:

• Bethesda I — Non-diagnostic. Insufficient cells for a confident answer. Repeat FNA in 3 months.
• Bethesda II — Benign. Risk of malignancy under 3%. Periodic ultrasound surveillance is usually all that is needed.
• Bethesda III — Atypia of undetermined significance. Risk 5–15%. Repeat FNA, molecular testing, or diagnostic surgery depending on context.
• Bethesda IV — Follicular neoplasm. Risk 15–30%. Diagnostic hemithyroidectomy is usually recommended.
• Bethesda V — Suspicious for malignancy. Risk 60–75%. Surgery indicated.
• Bethesda VI — Malignant. Risk over 97%. Surgery indicated, with extent guided by imaging.

Dr Pang reviews your specific Bethesda category at the follow-up visit and explains the recommended next step in plain language, with the likelihood of cancer for your particular scan and biopsy combined.

Treatment Options

Active Surveillance

For benign-appearing nodules with reassuring FNA cytology and no compressive symptoms, observation with periodic ultrasound (typically at 6 to 12 months, then annually) is the international standard of care. Surgery is not routinely needed and the lump can usually be safely left alone for life.

Thyroid Surgery

Surgery is recommended for:

• Suspicious or malignant FNA cytology (Bethesda V or VI)
• Indeterminate cytology requiring diagnostic excision (Bethesda III or IV)
• Large goitres causing pressure symptoms — difficulty swallowing, breathing, or visible neck deformity
• Hyperfunctioning nodules causing thyrotoxicosis
• Cosmetically significant lumps

Hemithyroidectomy removes one lobe of the thyroid — appropriate for one-sided benign or low-risk malignant disease. Most patients keep adequate hormone production from the remaining lobe and do not need lifelong thyroxine. Total thyroidectomy removes both lobes — required for larger or higher-risk cancers and bilateral nodular disease. Lifelong thyroxine replacement is required (one tablet a day).

Both operations take approximately 2 to 3 hours, require a 1 to 2 night hospital stay, and use a small horizontal incision (4 to 6 cm) placed in a natural skin crease at the base of the neck, which heals to a fine pale line. Continuous intra-operative nerve monitoring is used to protect the recurrent laryngeal nerve (which controls voice) and the parathyroid glands (which control calcium).

Other Neck Lumps

• Salivary gland tumours — usually require excision via parotidectomy or submandibular gland excision, with facial nerve monitoring
• Branchial and thyroglossal cysts — surgical excision once infection has settled; thyroglossal cysts require Sistrunk's procedure to remove the central hyoid bone segment to prevent recurrence
• Reactive lymph nodes — observation, sometimes with antibiotics; nodes that fail to resolve over 4 to 6 weeks need biopsy
• Lipoma — observation if asymptomatic; excision if growing or cosmetically troublesome

Cost & Medisave Coverage

An initial specialist consultation, neck ultrasound, and ultrasound-guided FNA can usually all be completed in a single visit. Indicative private fees: consultation $150–$250, ultrasound $250–$450, FNA $400–$700. Thyroid surgery in a private hospital ranges from approximately $12,000 to $25,000 depending on whether one or both lobes are removed and the room class. Both hemithyroidectomy and total thyroidectomy are Medisave-claimable up to the published surgical limit, and both are covered by all major integrated shield plans. Our clinic team verifies your specific coverage before any procedure.

Why Choose Dr Pang for Neck Lump & Thyroid Assessment?

• Former Senior Consultant and Clinical Director at NUH Department of Otolaryngology — Head & Neck surgery is a core part of every ENT consultant's training and practice
• One-stop neck lump clinic — examination, ultrasound, FNA, and a written plan in a single visit at Mt Elizabeth Medical Centre
• Direct access to nasoendoscopy at the same visit to exclude an upper aerodigestive primary when appropriate
• Personal explanation of the Bethesda result and recommended next step at follow-up
• Coordinated multidisciplinary care with endocrinology, oncology, and pathology when surgery or further work-up is needed

Frequently Asked Questions