Cervical lymphadenopathy in an adult can result from a vast number of conditions. They include:
- malignancy
- metastases
- from head and neck tumors
- lymphoma
- metastases
- other neoplastic lesions
- infection
- bacterial infection
- viral infection
- Epstein-Barr virus
- herpes simplex virus
- cytomegalovirus
- mycobacterial
- others