 There is interval decrease in the size of some of the cystic components of the craniopharyngioma. The cystic component that was noted in the previous study and indenting of the undersurface of the right frontal lobe decreased in size from 12 mm previously to 6 mm currently, deforming the lateral right cerebral peduncle has decreased in size from 19 x 13 mm previously to 11 x 7 mm currently. The cystic components along the anterior aspect of the right cerebral peduncle and along the anterior aspect of the left cerebral peduncle have also decreased in size. There continues to be involvement of the prepontine, cerebellopontine angle cistern, right ambient and right quadrigeminal cisterns, as well as the right middle cranial fossa, with associated mass effect upon the brainstem, right medial temporal lobe, and hypothalamus-optic apparatus complex. There is asymmetric volume loss of the left cerebellar hemisphere associated with increased T2 signal, which may be attributable to crossed cerebellar diaschisis versus chronic ischemic effects. The basilar artery is tortuous and encased by the tumor. There are postoperative findings related to right temporal craniotomy and stable position of right transfrontal catheter with the tip in the right prepontine cyst. The ventricular system appears to be unchanged. There are foci of susceptibility effect within the right temporal lobe resection cavity, consistent with hemosiderin deposition, and within portions of the tumor, which likely represent calcifications.
Further regression of some of the peripheral cystic components of the complex suprasellar and posterior fossa craniopharyngioma. MRI P BRAIN WWO, 12/10/2015 8:30 AMHISTORY: History of craniopharyngioma: 6 month follow-up of cysts.TECHNIQUE: MRI of the brain without and with contrast. A total of 4.5 cc of MultiHance was administered intravenously. 0.5 cc was discarded.COMPARISON: MRIs of the brain dated 8/13/2015 and 5/22/2015.FINDINGS:There is interval decrease in the size of some of the cystic components of the craniopharyngioma. The cystic component that was indenting the undersurface of the right frontal lobe decreased in size from 12 mm previously to 6 mm currently, deforming the lateral right cerebral peduncle has decreased in size from 19 x 13 mm previously to 11 x 7 mm currently. The cystic components along the anterior aspect of the right cerebral peduncle and along the anterior aspect of the left cerebral peduncle have also decreased in size. There continues to be extension of tumor into the prepontine, cerebellopontine angle cistern, right ambient and right quadrigeminal cisterns, as well as the right middle cranial fossa, with associated mass effect upon the brainstem, right medial temporal lobe, and hypothalamus-optic apparatus complex. There is asymmetric volume loss of the left cerebellar hemisphere associated with increased T2 signal, which may be attributable to crossed cerebellar diaschisis versus chronic ischemic effects. The basilar artery is tortuous and encased by the tumor. There are postoperative findings related to right temporal craniotomy and stable position of right transfrontal catheter with the tip in the right prepontine cyst. The ventricular system appears to be unchanged. There are foci of susceptibility effect within the right temporal lobe resection cavity, consistent with hemosiderin deposition, and within portions of the tumor, which likely represent calcifications.