Comparative study of complications after primary and revision transsphenoidal endoscopic surgeries.

A preferred treatment for residual/recurrent pituitary adenomas has not been established. The existence of higher complication rates for revision surgeries remains under debate. This study aimed to compare complication rates of primary and revision transsphenoidal endoscopic surgeries and to identify risk factors for complications.

Sphenopterional Point: Strategic Point for Burr Role Placement in Frontotemporal Craniotomies.

Background: Frontotemporal craniotomies are the most commonly performed neurosurgical approaches. We studied the external bony landmarks on the lateral surface of the skull to identify a "strategic" point where both the anterior and middle cranial fossae are exposed simultaneously during frontotemporal craniotomies through a single burr hole placed over the greater wing of the sphenoid bone (sphenopterional point).

Objective: This study aimed to anatomically define the sphenopterional point via craniometric measurements taken on the lateral surface of the human skull.

Pituicytoma.

Background: Pituicytomas originate from pituicytes, modified glial cells derived from ependymal lineage that are found in the stalk and posterior lobe of pituitary gland. The clinical presentation is similar to other pituitary tumors and imaging exams may suggest pituitary adenoma. The diagnostic is based on histopathological analysis.

Bilateral malignant metastases to the internal auditory canal: radiosurgical management.

Malignant melanomas constitute 1-8% of all malignant tumors and are the third most common tumor to metastasize to the central nervous system. However, metastases to the cerebellopontine angle (CPA) are rare, accounting for only 0.2 to 0.

Intracranial aneurysms in sickle cell patients: report of 2 cases and review of the literature.

Background: The sickle cell disease has different neurologic complications, including cerebral aneurysms. This disease may lead to endothelial damage, which favors the development of cerebral aneurysms. Only a few cases demonstrated by cerebral angiography or surgery have been reported in the English literature referring to cerebral aneurysms in sickle cell patients.