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Salivary Gland Tumors: Comprehensive Guide to Symptoms, Causes, and Treatment

Overview

Salivary gland tumors develop in glands producing saliva—located near ears (parotid), under the jaw (submandibular), and under the tongue (sublingual).

Tumor Types

  • Benign (85-90%): Noncancerous, slow-growing, rarely life-threatening.
  • Malignant (10-15%): Cancerous, require aggressive treatment.

Signs and Symptoms

  • Lump or swelling in face, neck, or under chin
  • Pain or discomfort in face, neck, or ear
  • Difficulty opening mouth or swallowing
  • Facial weakness, numbness, or tingling
  • Dry mouth, unexplained weight loss, fatigue, fever

When to See a Doctor

Persistent lump/swelling >2 weeks, or any associated symptoms warrant prompt evaluation.

Risk Factors

  • Sjögren's syndrome (autoimmune)
  • Prior head/neck radiation therapy
  • Epstein-Barr virus or HPV infection
  • Family history of salivary gland tumors

Complications

  • Nerve/muscle damage causing facial weakness
  • Eating/swallowing difficulties → malnutrition
  • Speech impairment
  • Cancer metastasis (lungs, liver, bones)

Diagnosis

  • Physical exam and medical history
  • Imaging: X-ray, CT, MRI
  • Biopsy (definitive diagnosis)

Treatment Options

  • Surgery: Primary treatment for most tumors
  • Radiation therapy: Pre/post-surgery or standalone for small tumors
  • Chemotherapy: Advanced/metastatic cancer
  • Targeted therapy: Specific molecular targets

Prognosis

Benign tumors: Excellent with complete excision. Malignant tumors: Variable; early detection and treatment significantly improve outcomes.

Prevention

No guaranteed prevention, but reducing radiation exposure and HPV/EBV vaccination may lower risk.

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