Cervicothoracic lesions are not uncommon in children. AU cervicothoracic le
sions except superficial lesions extend from the neck to the thorax through
the thoracic inlet. Evaluation of this area involves multiple imaging moda
lities: plain radiography, ultrasonography, nuclear medicine, computed tomo
graphy, and magnetic resonance (MR) imaging. However, MR imaging is the met
hod of choice for assessing the full extents of cervicothoracic lesions and
their relationships to neurovascular structures. Cervicothoracic lesions c
an be classified as congenital lesions, inflammatory lesions, benign tumors
, malignant tumors, and traumatic lesions. Lymphangioma is the most common
cervicothoracic mass in children; other congenital lesions include hemangio
ma, thymic cyst, and vascular anomalies. Inflammatory adenopathy reactive t
o tuberculosis, mononucleosis, tularemia, cat-scratch fever, infection with
human immunodeficiency virus, or other upper respiratory tract infections
can manifest as cervicothoracic lesions; tuberculous abscesses and abscesse
s of other origins can also be seen. Lipoma, Lipoblastoma, aggressive fibro
matosis, and nerve sheath tumors (either isolated lesions or those associat
ed with neurofibromatosis) can also occur as cervicothoracic masses. Malign
ant cervicothoracic tumors include lymphoma, thyroid carcinoma, neuroblasto
ma, and chest wall tumors (rhabdomyosarcoma, Ewing sarcoma, and neuroectode
rmal tumor). Traumatic cervicothoracic lesions include pneumomediastinum of
traumatic origin, traumatic pharyngeal pseudodiverticulum, esophageal fore
ign-body granuloma, and cervicothoracic hematoma.