 Dedicated images through the sella demonstrate a normal height of the pituitary gland. No focal abnormal signal intensity or mass is seen within the pituitary gland. There is stable slight asymmetric prominence of the right-sided glandular tissue within the sella although again without discrete lesion. Coronal dynamic images do not indicate a hypoenhancing lesion. The pituitary stalk lies in the midline and appears blunted, with caudal displacement of the optic chiasm. There is an oval area of suprachiasmatic CSF signal intensity resulting in mass effect upon the upper surface of the optic chiasm. This measures 11 mm transverse x 7 mm CC x 9 mm AP. There is no corresponding enhancement. Suprasellar cistern, cavernous sinuses and intracranial portions of the optic nerves appear unremarkable. No abnormal enhancement is seen intracranially.SPINE
1.Stable postoperative changes following Chiari decompression with similar degree of crowding at the level the neo-foramen magnum. CSF flow imaging was performed but may be technically limited, as no definitive flow is seen within the entire field-of-view.2.No definite pituitary lesion. A small oval cystic lesion is seen in the suprachiasmatic location with mass effect upon the adjacent chiasm, possibly representing a small incidental arachnoid cyst.3.Significantly worsened syringohydromyelia, which now again encompasses the nearly the entire thoracic cord as well. Slight increased focal cystic appearance within the area of syrinx along the upper cervical cord.