<unk>  = inflammation of lymph node
Can be single or multiple
Most commonly due to viral or bacterial disease (usually staph or strep) infection local to region draining lymph to that node
Pyogenic organisms may cause suppurative infection/abscess
Not to be confused with lymphangitis
Lymphadenitis
Reactive adenitis
Pharyngitis
Bacterial lymphadenitis
Laryngitis
Tuberculous lymphadenitis
Lymphangitis
Cellulitis