Extensive Craniocervical Abscess after Transoral Ganglionic Local Opioid Analgesia at the Superior Cervical Ganglion for Atypical Trigeminal Neuralgia: Report of a Severely Complicated Case

Figure 2

Axial MRI slice five days after incision and drainage of the prevertebral abscess: contrast-enhanced T1-weighted axial MRI scan shows the incised abscess cavity (white asterisk) which is connected to a progressive fluid retention especially in the area between the dorsal ligament and the ventral dura with a slight compression of the myelon (white arrow). This epidural abscess ranged from the foramen magnum to the upper ridge of the third cervical vertebra.