Anatomical Predictors of Transcranial Surgical Access to the Suprasellar Space.

 The suprasellar space is a common location for intracranial lesions. The position of the optic chiasm (prefixed vs. postfixed) results in variable sizes of operative corridors and is thus important to identify when choosing a surgical approach to this region.

Symptomatic Primary Tethered Optic Chiasm: Technical Case Report.

Background And Importance: Symptomatic tethering of the optic nerves and chiasm is a rare occurrence and has been reported following both surgical and medical treatment of pituitary adenoma. Here we present a case of primary optic chiasm tethering in a patient with empty sella syndrome.

Clinical Presentation: The patient was a 61-yr-old female who presented with progressively worsening bitemporal hemianopsia.

A rare intracranial tumor consisting of malignant anaplastic and papillary meningioma subtypes.

Background: Intracranial tumors with heterogeneous histopathology are a well-described pathologic entity. Pathologically, distinct tumors in direct contact with one another, also known as collision tumors are exceptionally rare, and collision between meningioma subtypes has not been previously described in the literature.

Case Description: A 79-year-old female with a history of breast carcinoma presenting with visual and motor deficits and imaging/intraoperative findings consistent with separate, distinct lesions.