Goiter & Enlarged Thyroid Surgery in Los Angeles

An enlarged thyroid — a goiter — often announces itself slowly: a shirt collar that fits differently, a fullness at the base of the neck, food that seems to catch on the way down, breathing that feels effortful when lying flat. Some goiters can simply be watched. Others steadily compress the windpipe and swallowing passage, or grow unseen down behind the breastbone. Dr. Jason S. Cohen, a board-certified surgical oncologist at Cedars-Sinai Medical Towers, specializes in goiter surgery — including the large and substernal goiters that demand particular expertise.

Why goiters form

A goiter is not a single disease but a pattern: the thyroid enlarging beyond its normal size. Sometimes the whole gland grows smoothly; more often, it accumulates multiple nodules over years — a multinodular goiter. Family history, age, autoimmune thyroid disease, and hormonal factors all contribute. Some goiters keep making normal amounts of hormone; others become overactive as nodules begin producing hormone autonomously (a toxic goiter). Most grow slowly, which is exactly why their symptoms are so often attributed to something else for years.

Symptoms that deserve attention

When surgery is the right answer

Not every goiter needs an operation — small, stable, symptom-free goiters can often be monitored. Surgery becomes the right choice when a goiter causes compressive symptoms, shows objective narrowing of the windpipe on imaging, keeps growing, extends substernally, harbors nodules with suspicious features, or drives hyperthyroidism that is best cured definitively. Medication does not shrink established nodular goiters in any meaningful way, and radioactive iodine has a limited role for large compressive disease — surgery remains the definitive solution when a goiter is genuinely causing trouble.

Substernal goiters: a special expertise

When a goiter grows downward past the collarbones into the chest, it is called substernal (or retrosternal). These goiters cannot be fully examined by hand, tend to progress, and can significantly compress the windpipe within the rigid confines of the upper chest. They are, in nearly all cases, an indication for surgery — and they are technically demanding operations that reward specific experience.

The reassuring reality: in experienced hands, the overwhelming majority of substernal goiters are removed entirely through a standard low-neck incision, without opening the chest. Careful preoperative imaging (typically a CT scan) maps the goiter’s extent and relationship to the great vessels and airway, allowing Dr. Cohen to plan a controlled, safe delivery of the gland up and out through the neck. Needing a chest incision is rare and identified in advance, not discovered mid-operation.

The operation and your recovery

Goiter surgery removes half or all of the gland depending on which parts are diseased and whether both sides contribute to compression. The operation is performed under general anesthesia through an incision in a natural neck crease — modestly longer for very large goiters, but still designed to heal into an inconspicuous line. Throughout, the recurrent laryngeal nerves are identified and protected with intraoperative monitoring, and the parathyroid glands are preserved with their blood supply.

Most patients stay one night and are struck by how quickly the pressure symptoms ease — breathing and swallowing often feel freer within days as swelling settles. If the entire gland is removed, a daily hormone tablet restores normal levels; after removal of one side, most patients need no medication. Light activity resumes within days, with full activity over a few weeks.

Why choose Dr. Cohen

Large and substernal goiter surgery is where a dedicated thyroid practice shows its value most clearly: in preoperative imaging judgment, in the controlled technique that keeps big operations safe, and in the calm management of anatomy that has been distorted by years of growth. Dr. Cohen is a fellowship-trained surgical oncologist whose practice at Cedars-Sinai Medical Towers concentrates on thyroid and parathyroid surgery, including the complex goiter cases that are often referred on from elsewhere. Patients receive an honest assessment of whether their goiter needs surgery at all — and, when it does, an operation planned for both safety and a discreet cosmetic result.

Serving Los Angeles

Dr. Cohen evaluates goiters for patients from Beverly Grove, Beverly Hills, West Hollywood, Santa Monica, the Valley, and across Southern California. If your goiter is growing, pressing, or extending substernally, a consultation with CT imaging review will give you a clear picture of exactly where things stand.

Frequently asked questions

This page provides patient-education content and does not replace a medical consultation. Individual recommendations depend on an in-person evaluation with Dr. Cohen.