Nasal and Sinus Tumors

Where nasal tumors develop

The nasal cavity is the passage behind the nostrils. Around it are the paranasal sinuses: maxillary (cheeks), ethmoid (between the eyes), frontal (forehead) and sphenoid (deep behind the nose). Tumors here can grow silently because there is space to expand, and they sit close to the eye socket, skull base and brain. The nasopharynx, the space behind the nose above the throat, is usually considered separately (nasopharyngeal cancer).

Types of nasal tumors

Benign (non-cancerous)

Nasal polyps are not tumors. They are swellings of inflamed lining, usually on both sides, linked to chronic sinusitis and asthma. A one-sided "polyp" needs biopsy.

Malignant (cancerous)

• Squamous cell carcinoma: the most common type, often in the maxillary sinus or nasal cavity; linked to smoking and some to HPV.
• Adenocarcinoma: classically in the ethmoid sinus; strongly linked to hardwood and leather dust.
• Olfactory neuroblastoma (esthesioneuroblastoma): arises from the smell nerve at the roof of the nose.
• Mucosal melanoma, lymphoma, adenoid cystic carcinoma and sinonasal undifferentiated carcinoma: rarer types with different behavior and treatment.

Symptoms

Early symptoms

• Nasal congestion or blockage on one side that does not clear
• Nosebleeds or bloody discharge, usually from one side
• Reduced sense of smell
• Mucus draining down the back of the throat
• Pressure or pain over a sinus

Later symptoms, as the tumor spreads

• Eye: bulging, double vision, watering (blocked tear duct), reduced vision
• Face: swelling, numbness or pain in the cheek, upper lip or teeth
• Mouth: loose upper teeth, poorly fitting dentures, a lump on the roof of the mouth
• Ear: a blocked feeling or fluid behind the eardrum on one side
• Neck: a lump from lymph node spread
• Head: persistent headache

The pattern that sets tumors apart from ordinary chronic sinusitis is one-sidedness, persistence and bleeding.

Risk factors

• Occupational exposure to hardwood dust (furniture making, carpentry), leather dust, nickel, chromium, formaldehyde, and textile dust
• Smoking
• Human papillomavirus (HPV) for some squamous cell carcinomas and inverted papillomas
• Epstein-Barr virus for some lymphomas
• Male sex and age over 50

Diagnosis

1. Nasal endoscopy: an ENT specialist looks inside the nose with a thin camera in the clinic, after numbing spray.
2. CT scan: shows bone erosion and the extent within the sinuses.
3. MRI: separates tumor from trapped mucus and shows spread into the eye socket, skull base or brain.
4. Biopsy: usually through the nose, sometimes in the operating room; it confirms the exact type.
5. Staging: PET-CT or neck imaging for cancers, to check lymph nodes and distant spread.

Treatment

Treatment is planned by a head and neck team, often including skull base surgeons, ENT surgeons, oncologists and eye specialists.

Benign tumors

• Endoscopic surgery through the nostrils removes most benign tumors without external cuts.
• Inverted papilloma needs complete removal including its attachment point, then follow-up endoscopy for years because it can recur.
• Juvenile angiofibroma is usually embolized (its blood supply blocked) before surgery to reduce bleeding.

Cancers

• Surgery: endoscopic, or open approaches through the face or skull base for larger tumors. Sometimes part of the upper jaw or eye socket must be removed and reconstructed.
• Radiation therapy: usually after surgery; intensity-modulated or proton therapy reduces damage to the eyes and brain.
• Chemotherapy: combined with radiation for advanced cancers, or before surgery to shrink some tumors.
• Immunotherapy for recurrent or spread disease in some cases.

After treatment

Many people need regular nasal rinsing and crust cleaning while healing. Dental prosthetics (obturators) can close a gap in the roof of the mouth. Follow-up includes endoscopy and MRI for several years.

Outlook

Benign tumors have an excellent outlook, although inverted papilloma needs long-term monitoring. For cancers, survival depends on type and stage. Small tumors confined to the nasal cavity are often curable; cancers that have spread into the eye socket, skull base or brain are harder to treat. Late diagnosis is common because early symptoms resemble sinusitis.

Frequently asked questions

What are the first signs of a tumor in the nose?

The earliest signs are usually a blocked nose on one side that does not clear, repeated nosebleeds or blood-stained mucus from one side, and a reduced sense of smell. Because these overlap with sinusitis, symptoms lasting more than 3 to 4 weeks on one side should be checked by an ENT specialist.

Are most nasal tumors cancerous?

No. Many growths in the nose are benign, such as inverted papillomas, osteomas or vascular growths, and common nasal polyps are not tumors at all. Nasal and sinus cancers are rare. A biopsy is the only way to tell for certain.

How is a nasal polyp different from a nasal tumor?

Nasal polyps are soft, grape-like swellings of inflamed lining, usually on both sides, linked to allergies, asthma and chronic sinusitis. A tumor is a true growth of abnormal cells and is usually on one side. Any one-sided mass should be biopsied.

Can you see a nasal tumor on a CT scan?

Yes. A CT scan shows a mass and any bone erosion, and an MRI helps separate tumor from trapped mucus and show spread toward the eye or brain. Imaging cannot confirm the type, so a biopsy is always needed.

Is inverted papilloma cancer?

Inverted papilloma is a benign tumor, but it can be associated with squamous cell cancer in a small proportion of cases and tends to recur if not fully removed. It is treated by complete surgical removal followed by regular endoscopic checkups.