Spinal intramedullary arachnoid cyst: case report and literature review.

Background Context: Intramedullary arachnoid cysts are extremely rare; only 14 cases have been reported in the literature so far.

Purpose: We report on the case of a 31-year-old woman who presented with back pain and progressive paraparesis secondary to a dorsal intramedullary arachnoid cyst detected on magnetic resonance imaging (MRI): the surgical planning and clinico-radiological outcome are discussed along with a review of the relevant literature.

Study Design: Case report and literature review.

Interdural giant dermoid cyst of the petrous apex.

Dermoid cysts account for less than 1% of all intracranial neoplasms and these are principally situated close to the midline. Those located at the petrous apex are generally in the intradural, and less frequently in the interdural, compartment. We report a 37-year-old woman with a giant interdural dermoid cyst of the petrous apex, associated with erosion of the middle fossa floor, and review the relationships of these dysembryogenic lesions, the dura mater and the neurovascular structures of this complex anatomical region, along with the relevant literature.

Bilateral intra-orbital ophthalmic artery aneurysms.

Clinical Details: A 52-year-old man presented with neck pain, nausea and vomiting (Hunt-Hess grade 1). CT scan showed subarachnoid hemorrhage. Cerebral angiography showed multiple arterial aneurysms (right communicating posterior, right anterior choroid, left pericallosal, intraorbital ophthalmic bilaterally).

Minimally invasive echo-guided placement of the cardiac tube in a ventriculoatrial shunt during pregnancy: technical note.

Objective: We describe a minimally invasive echo-guided placement of the cardiac tube in a ventriculoatrial shunt in a young pregnant woman, in order to avoid any radiological procedure.

Methods: We used a central venous catheter placement kit for percutaneous echo-guided right internal jugular vein puncture located by a 7.5 mHz microlinear probe.