Cervical Lymphadenopathy - Lymph Node Drainage Preauricular nodes - Drain scalp, skin • Differential diagnosis: Scalp infections, mycobacterial infection • Malignancies: Skin neoplasm, lymphomas, head and neck squamous cell carcinomas Posterior cervical nodes - Drain scalp, neck, upper thoracic skin • Differential diagnosis: Same as preauricular nodes Supraclavicular nodes - Drain gastrointestinal tract, genitourinary tract, pulmonary • Differential diagnosis: Thyroid/laryngeal disease, mycobacterial/fungal infections • Malignancies: Abdominal/thoracic Submandibular nodes - Drain oral cavity • Differential diagnosis: Mononucleosis, upper respiratory infection, mycobacterial infection, toxoplasma, cytomegalovirus, dental disease, rubella • Malignancies: Squamous cell carcinoma of the head and neck, lymphomas, leukemias Anterior cervical nodes - Drain larynx, tongue, oropharynx, anterior neck • Differential diagnosis: Same as submandibular nodes #Cervical #Lymphadenopathy #Nodes #Drainage #diagnosis #differential
