What is the location of this tumour in the spine?
The mass is extradural with intradural extension, clearly extramedullary.
What are the differentials for this cervical spine tumour?
The differentials are those of a spinal nerve sheath tumour, such as schwannoma and neurofibroma, and a meningioma. The features are more suggestive of a schwannoma: single lesion, widening the intervertebral foramen, possible small necrotic areas in the centre.
The incidental right IAC finding raises which syndrome as a possibility?
Neurofibromatosis type 2.
Dumbbell in configuration iso-high heterogenous T2 with corresponding iso-low T1signal mass seen with mildly heterogenous enhancement following IV contrast involving the left C2/3 neural exit foramen. The focus extends to the central spinal canal with significant displacement of the spinal cord towards the right side but without abnormal spinal cord signal change. There is bony widening to the involved neural exit foramen with the lesion abutting the left vertebral artery.
Note is made of a right-sided rounded homogeneous enhancing acoustic neuroma at the level of the right internal auditory meatus. There is no intracanalicular component.
Fluid demonstrated within the right mastoid air cells suggestive of mastoiditis.
Patchy bone marrow present due to a combination of fatty and red marrow.