The medulla oblongata, cervicomedullary junction and whole cervical cord are expanded with diffusely T2 hyperintense signal and T1 hypointense signal with evidence of intramedullary heterogeneous ring enhancement at the cervicomedullary junction posteriorly averaging 1.9 cm in length.
Increased T1 and T2 marrow signal of the upper cervical vertebrae, suggestive of radiation-induced fatty marrow replacement.
D1 left-sided vertebral body hemangioma.
C4/5 small right posterolateral disc protrusion indenting the ventral cord with no foraminal compromise.
C5/6 posterior broad-based disc-osteophyte complex, indenting the ventral cord aspect and encroaching upon exit of neural foramina, more on the right side.
Obliteration of the right fossa of Rosenmüller, due to the known nasopharyngeal carcinoma under treatment.