Differential diagnosis of cervical lymphadenopathy are :
-sarcoidosis
-cat-scratch disease
-tuberculous lymphadenitis
-lymphoma
-metastasis from squamous cell carcinoma in mouth, upper esophagus, larynx and pharynx
-bacterial infection of upper extremities
-upper respiratory tract infection
-toxoplasmosis
-drug induced pseudolymphoma such as phenytoin
-actinomycosis
-tularemia
-histiocytic necrotizing lymphadenitis
-autoimmune adenopathy
-sarcoidosis
-cat-scratch disease
-tuberculous lymphadenitis
-lymphoma
-metastasis from squamous cell carcinoma in mouth, upper esophagus, larynx and pharynx
-bacterial infection of upper extremities
-upper respiratory tract infection
-toxoplasmosis
-drug induced pseudolymphoma such as phenytoin
-actinomycosis
-tularemia
-histiocytic necrotizing lymphadenitis
-autoimmune adenopathy