Diagnosis: Neoplasm of unspecified behavior of unspecified siteClinical question: preop planning for tumor biopsySigns and Symptoms: preop planning The CSF spaces are appropriate for the patient's stated age with no midline shift. There is a cystic appearing mass measuring 29 x 16 mm axial dimensions and located underneath the right half of the genu of the corpus callosum involving the right gyrus rectus and rostral anterior cingulate gyrus. It is associated with some local mass effect. It is unchanged in size when compared to the August exam.Normal vascular flow voids are present in the distal carotid and vertebral arteries, the basilar artery and the proximal anterior, middle and posterior cerebral arteries as well as the internal cerebral veins and superior sagittal sinus.The visualized portions of the paranasal sinuses are clear. The visualized portions of the mastoid air cells are clear. The visualized portions of the orbits are intact.
A cystic mass adjacent and inferior to the genu of the corpus callosum involving the subcallosal cingulate gyrus and posterior aspect of the gyrus rectus is stable compared to the prior exam.