What is a Glomus Tumour?

A glomus tumour is a nodule that forms from glomus cells within the arterial component of the glomus body, or succulent-Hoyer canal. These tumours most often present on an adult’s palm or nail bed and are extremely tender, especially after a change in temperature or pressure.

Extracutaneous glomus tumours are rare but may occur in the gastrointestinal tract, mediastinum, trachea, mesentery, cervix, and vagina.

Types of Glomus Tumours

In the head and neck region, glomus tumours can occur in the following locations:

Carotid artery (glomus vagale): Occur in the deep neck (parapharyngeal) space along the vagus nerve.
Jugular bulb (glomus jugulare): The most common location, below the middle ear. Tumours can extend into the middle ear, skull base, and cranial cavity.
Middle ear (glomus tympanicum): The most frequent vascular middle ear tumours, originating from glomus cells in the middle ear.

Symptoms of Glomus Tumours

Glomus tumours often appear as a small, firm, reddish-blue swelling under the fingernail, usually less than 7 mm in diameter. They may be:

Extremely painful
Temperature-sensitive
Tender on percussion
More painful at night
Relieved temporarily with a tourniquet
Associated with nail bed changes like ridging or irregular growth

What Causes Glomus Tumours?

The precise cause of glomus tumours is not fully understood.

Risk Factors for Glomus Tumours

Some glomus tumours are linked to inherited genetic mutations that may be passed to children. Genetic screening is advised for families with a history of glomus tumours. However, these tumours can also occur sporadically due to gene mutations developed over time.

How is a Glomus Tumour Diagnosed?

Diagnosis typically requires an ENT or tumour specialist. During examination, signs include:

Bluish lesion under the nail
Tip swelling or tenderness
Abnormal nail ridging

X-rays may show deformity or erosion of the distal phalanx in long-standing cases. MRI is the investigation of choice for confirming the diagnosis.

Treatment of Glomus Tumours

The primary treatment for glomus tumours is surgical removal. The approach may vary depending on the tumour’s location and nature:

Surgery: Applied to both benign and malignant paragangliomas; may be combined with embolization or stereotactic radiotherapy.
Watch and wait: For slow-growing tumours or high-risk surgical patients, periodic monitoring is considered.
Local therapies: Embolization or stereotactic radiotherapy/CyberKnife may be used directly in specific cases.
Systemic therapies: For metastatic disease, treatment may include receptor-targeted radionuclide therapy, MIBG therapy, chemotherapy, molecular-targeted therapy, or immunotherapy.

All treatment plans should be reviewed by an interdisciplinary tumour board including specialists in oncology, endocrinology, radiology, surgery, pathology, and psycho-oncology.

What Increases the Likelihood of a Glomus Tumour?

The exact development mechanism remains unclear, but glomus tumours are more common in women and may have a hereditary component. No specific criteria currently exist to predict their frequency or association with other conditions.

Can Glomus Tumours Be Prevented?

Prevention is not currently possible, as many causes are unknown. While smoking and other carcinogens may contribute, even hereditary forms of glomus tumours cannot be stopped in advance.

For individuals diagnosed with hereditary paraganglioma syndromes, routine screening is essential. This includes annual clinical evaluations, lab tests, and imaging from the skull base to pelvis every 2–3 years, typically via MRI.

Prognosis of Glomus Tumours

Outcomes depend on whether the tumour is benign (about 60%) or malignant (about 40%). Malignant tumours require prompt surgery. However, even benign tumours can be locally destructive and potentially metastasize later.

Due to the complexity and potential severity, early diagnosis, timely treatment, and regular follow-up at a specialized centre are critical for the best prognosis.

Why Choose Tender Palm Super-Speciality Hospital for Glomus Tumour Treatment in Luknow, India?

Tender Palm Super-Speciality Hospital has the most trusted team of ENT specialists and surgeons with advanced diagnostic equipment care for Glomus Tumours treatment in Lucknow, India. Our ENT department follows international safety standards and has years of experience in treating Skull Base related Disease and Conditions.