Imaging is generally indicated in traumatic causes of<unk>  pain. When indicated, plain X<unk>  with different views is the first imaging investigation that is performed. In non traumatic cases of<unk>  pain, imaging is indicated when there is a risk for infection (IV drug use, immunocompromised individual), age >50 with new onset of pain, presence of constitutional/neurologic symptoms or history of malignancy.
Neck pain x ray
Neck pain CT
Neck dissection
Croup physical examination
Eye pain chest x ray
Neck pain physical examination
Palpitation physical examination
Lymphadenopathy x ray