Lymphadenopathy, the most important causes

Lymphadenitis- painful lymph nodes • Reactive lymphadenopathy due to infection in the region of lymph node: submandibular lymphadenopathy in tonsilitis or labial heres • General infections( rubella- occipital lymphadenopathy, glandular fever- cervical lymphadenopathy) • Hematologic malignancies: -General lymphadenopathy- lymphoblastic leukemia -Single lymphnode or cluster- lymphoma • Non- infectious disease – Kawasaki disease