One-step orbit reconstruction using PMMA implants following hyperostotic sphenoid wing meningioma removal: Evolution of the technique in short clinical series.

Purpose: To report our experience with patient specific implants for one-step orbit reconstruction following hyperostotic SWM removal and to describe the evolution of the technique through three surgical cases. Methods: Three cases of one-step SWM removal and orbit reconstruction are described. All cases are given consecutively to describe the evolution of the technique.

Predictive model for preoperative risk calculation of cerebrospinal fluid leak after resection of midline craniofacial mass lesions.

Background: Complex anterior skull base defects produced by resection of mass lesions vary in size and configuration and may be extensive. We analyzed the largest single-center series of midline craniofacial lesions extending intra- and extracranially. The study aims at the development of a predictive model for preoperative measurement of the risk of the postoperative cerebrospinal fluid (CSF) leak based on patients' characteristics and surgical plans.

Intraoral Endoscopic Ligation of Maxillary Artery in the Infratemporal Fossa.

Ligation of the sphenopalatine and posterior nasal arteries is indicated for posterior epistaxis as initial treatment or when conservative measures fail. In some patients, a transnasal approach or its alternative transantral approach are not possible due to tumor filling the nasal corridor, pterygopalatine fossa, or maxillary sinus. Aim of this study was to evaluate feasibility of endoscopically assisted transoral approach for the ligation of the maxillary artery (MA).

Nasal Chondromesenchymal Hamartoma with Skull Base and Orbital Involvement: Case Presentation.

Nasal chondromesenchymal hamartoma (NCMH) is a rare benign tumor of the sinonasal tract in children with possible orbit and skull base involvement. We present the 57th published observation of this kind of tumor. A 25-month-old female patient presented with recurrent mass lesion of the sinonasal tract.

The Pedicled Buccal Fat Pad: Anatomical Study of the New Flap for Skull Base Defect Reconstruction After Endoscopic Endonasal Transpterygoid Surgery.

 To evaluate the efficacy and safety of using a buccal fat pad for endoscopic skull base defect reconstruction.  Descriptive anatomical study with an illustrative case presentation.  Anatomical study was performed on 12 fresh human cadaver specimens with injected arteries (24 sides).

Intraosseous Metastasizing of Pineoblastoma into the Anterior Skull Base, Calvarial Bones, and Vertebrae.

Pineoblastoma is a rare malignant tumor of the central nervous system (CNS), which arises from the parenchyma of the pineal gland. It is characterized by aggressive clinical behavior and frequent metastases along the craniospinal axis. Extraneural metastases may occur due to surgical seeding of tumor cells beyond the dura and/or hematogenous spread, ventriculoperitoneal shunting, or through Batson's plexus.

Management of craniofacial chondroid tumors.

Background: Craniofacial chondroid tumors (CFCTs) constitute less than 1% of all intracranial mass lesions. No protocol for evaluation and management of CFCTs is developed at the moment.

Materials And Methods: We analyzed 51 patients with CFCTs operated on in Burdenko Neurosurgical Institute from 1980 until 2012, which included chondroma (15), chondroblastoma (3), chondromyxoid fibroma (11), and chondrosarcoma (22).

Translocated pedicled buccal fat pad: closure of anterior and middle skull base defects after tumor resection.

Background: Problem of closure of skull base defects after removal of craniobasal lesions, especially, craniofacial, is one of the most challenging in neurosurgery. Persistent skull base defect produces extremely high risk of cerebrospinal fluid leaks and consecutive infectious complications. Local pedicled grafts are the preferred material for plasty.

Advanced craniofacial juvenile nasopharyngeal angiofibroma. Description of surgical series, case report, and review of literature.

Background: Juvenile nasopharyngeal angiofibroma (JNA) is a rare benign tumor occurring almost exclusively in adolescent and young adult males. The tumor is characterized by slow progression, aggressive growth, high vascularization, and increased rate of persistence and recurrence. The aim of this study was to describe a case of giant JNA from our practice and discuss the controversies of surgical treatment of advanced JNA.