Cervical Lymphadenopathy

Original Editor - Kehinde Peter Agunbiade Top Contributors - Kehinde Peter Agunbiade, Vidya Acharya, Khloud Shreif and Ewa Jaraczewska

Introduction

Cervical lymphadenopathy right neck.

Cervical lymphadenopathy is the swelling of lymph nodes in the neck, which can indicate various problems including infections, cancer, autoimmune disorders, and other systemic diseases. It is a critical clinical finding that requires extensive examination to discover its aetiology. Cervical adenitis syndrome, often lymphadenitis, is defined as inflamed lymph nodes produced by pathogenic organisms such as Staphylococcus aureus and Streptococcus pyogenes. Tenderness, erythema, and systemic indications such as fever are all possible symptoms.

Clinically Relevant Anatomy

The cervical lymphatic system consists of around 300 lymph nodes organised into anatomical and clinical levels (I-VII), which aid in diagnosis based on the affected nodes and their drainage areas.

• Level I: Submental and submandibular nodes.
• Level II-IV: Internal jugular chain nodes.
• Level V: Posterior triangle nodes.
• Level VI: Pretracheal and paratracheal nodes.
• Level VII: Superior mediastinal nodes.

These nodes drain regions such as the oral cavity, nasopharynx, oropharynx, and thyroid.

Mechanisms of Pathological Processes

Pathological enlargement of cervical lymph nodes occurs through mechanisms such as:

• Reactive Hyperplasia: When infections infiltrate the immune system, lymphocytes (white blood cells) are mobilised to combat the infection. This causes an increase in lymphocyte production and accumulation in the lymph nodes, causing them to grow larger.
• Infiltration: Carcinoma cells invade lymph nodes, often due to metastatic spread from an initial cancer location. This happens as tumor cells flowing in the lymphatic fluid are captured and trapped by lymph nodes, which function as a filter in the lymphatic system.
• Granulomatous Diseases: Diseases like Tuberculosis or Sarcoidosis which are chronic inflammatory illnesses causes the lymph nodes to develop a localised cluster of macrophages known as a granuloma in reaction to persistent antigens that the immune system is unable to eradicate.

Clinical Presentation

• Infections: Tender, mobile nodes, erythema, and systemic signs (e.g. fever). Examples include bacterial adenitis and viral infections (e.g. Epstein-Barr Virus ).
• Malignancies: Hard, fixed, non-tender nodes, often supraclavicular, indicating metastasis.
• Autoimmune Conditions: Soft, mobile lymph nodes accompanied by joint pain or systemic inflammation .

Diagnostic Approach

1. History and Examination: Evaluation of node size, tenderness, mobility, and associated systemic symptoms.
2. Biopsy: Fine needle aspiration cytology (FNAC) for initial evaluation, excisional biopsy for definitive diagnosis.
3. Imaging:
   • Ultrasound to differentiate reactive from malignant nodes
   • CT/MRI for detailed nodal architecture and staging
   • Positron Emission Tomography with Computed Tomography (PET-CT) scanner to create detailed images of the inside of the body to assess metabolic activity .

Management and Interventions

• Infections: Antibiotics for bacterial lymphadenitis; antitubercular therapy for tuberculosis.
• Malignancies: Surgical excision, neck dissection, radiotherapy, and chemotherapy.
• Autoimmune Diseases: Immunosuppressive therapy for conditions like Systemic Lupus Erythematosus.

Physiotherapy Management

The underlying cause of the lymphadenopathy should be determined before initiating any manual therapy or exercise program. If the cause is unknown or if there are any concerns about the appropriateness of treatment, it's important to consult with the patient's primary care physician before proceeding.

Physiotherapy plays a crucial role in aiding patients recovering from surgical or radiation treatments, as well as those experiencing chronic inflammation. Goals include restoring cervical mobility, managing lymphedema, and improving overall quality of life.

Core Interventions: such as

• Manual Techniques: soft tissue massage, Scar mobilization, and manual lymphatic drainage.
• Pain Management: Using heat, cold therapy, and Transcutaneous Electrical Nerve Stimulation (TENS).
• Strength and Postural Training: Strengthening deep neck flexors and correcting postural deviations.
• Range of Motion (ROM) Exercises: Gentle, progressive stretches targeting cervical flexion, extension, lateral bending, and rotation. For example, neck rotations and chin tucks.
• Breathing Exercises: Diaphragmatic and thoracic expansion exercises to enhance oxygenation and relaxation.

Functional Rehabilitation:

• Gradual reintegration into daily activities, focusing on ergonomic adjustments
• Collaboration with speech-language pathologists for post-surgical dysphagia or speech difficulties.

Monitoring and Outcome Measures:

• Regular assessment of cervical ROM and pain using Visual Analogue Scale (VAS)
• Functional outcomes are measured by indices like the Neck Disability Index (NDI) and Oral Health Impact Profile (OHIP).