Lymphadenopathy - Differential Diagnosis Algorithm
Localized: 
 • Cervical: EBV, CMV, HIV, Toxo, TB, Lymphoma, Head / Neck scc, Melanoma
 • Axillary: Infection (Cat scratch, Tularemia), Breast Cancer
 • Supraclavicular: Virchow's Node, Thoracic or Abdominal cancer, Thyroid / larynx disease, Tuberculosis
 • Inguinal: Sexually transmitted infections (STl)
Generalized:
 • Auto-immune: Dermatomyositis, Rheumatoid Arthritis, Sjögren's
 • Infection: Acute HIV, EBV, Mycobacterial - disseminated tuberculosis
 • Malignant: Lymphoma, Angioimmunoblastic T-cell lymphoma
 • Miscellaneous: Castleman's, Sarcoidosis
 • Medications: Allopurinol, Beta-Blockers, Anti-epileptic drugs (AEDs)

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