Male, 57 years old, with history of nasopharyngeal cancer, status post induction, evaluate response. Neck:The previously demonstrated nasopharyngeal mass has significantly decreased in size and definition. A discretely measurable lesion separate from the adenoids is no longer identified.Substantial decrease in the size of multiple metastatic lymph nodes is seen. The large aggregate at level II on the right now measures approximately 21 x 12 mm (image 30 series 20), previously 55 x 54 mm. A left level II node measures 23 x 13 mm (image 30 series 20), previously 37 x 18 mm. A left lateral retropharyngeal node now measures up to 19 x 11 mm (image 24 series 20), previously 21 x 12 mm.The salivary glands are within normal limits. The visualized airway is patent. Bone marrow signal characteristics are unremarkable. Disc herniations are seen at several levels in the visualized cervical spine with perhaps mild spinal canal stenosis at C4-5.Brain:No evidence of parenchymal edema, mass effect or pathologic intracranial enhancement is observed. Diffusion-weighted images are within normal limits. No intracranial hemorrhage or any abnormal extra-axial fluid collections are seen. A few very small scattered foci of T2 hyperintensity within the cerebral hemispheres are nonspecific. Ventricular size and morphology are within normal limits.
1.Significant interval decrease in the size of a nasopharyngeal mass, such that there is no longer any discretely measurable lesion.2.Significant interval decrease in size of multiple pathologic lymph nodes and nodal aggregates in the neck.3.No evidence of intracranial metastasis.