Transverse cervical megapophysis as an uncommon cause of torticollis

Congenital abnormalities of the spine are not uncommon in the general population and can be asymptomatic. Transverse megapophysis is a congenital anomaly manifested as an enlargement of the transverse processes, typically common in the lumbar vertebrae. Here, we describe a 4-month-old infant female with episodes of shooting pain and torticollis. At the beginning of the third month, the parents noticed she held her neck inclined towards the left side in a changeable way, and movement caused discomfort and crying. Muscular tonus, laboratory investigations, ECG and heart and transfontanellar ultrasound were normal. A cervical CT and MRI displayed at the C7 level a megapophysis transverse involving both sides. Treatment with no steroidal anti-inflammatory drugs twice a day and, after a few days, symptoms solved. At 8 months follow-up, neck maintains its natural position and no unmotivated pain has been noticed. Transverse C7 megapophysis presenting with torticollis is an example of a cause of severe pain in infancy, and it should be considered in the differential diagnosis of infantile torticollis.