An adult with a neck lump.

The article presents the case of a 40-year-old male who was presented with a one centimeter (cm) tender soft swelling in the lateral neck region following the onset of a tonsillitis episode that was already resolved. It cites several symptoms of the disease, including dysphagia, voice change, and persistent sore throat. It recommends that patients with persistent palpable posterior node enlargement should undergo full blood count and screen for infective mononucleosis.