A rare case of mucopyocele in a patient who presented with epileptic seizures is reported. The computed tomography scan (CT) and the magnetic resonance (MR) imaging revealed an intradural extension of a giant fronto-ethmoidal mucopyocele, eroding the cribriform plate and compressing both frontal lobes. The lesion was removed by craniotomy with elimination of the mass effect and reconstruction o...

We examined 50 computed tomographic (CT) scans that included sections through the base of the skull at a wide variety of angles. Each of these examinations had an accompanying localizing radiograph so that the angle at which the scan had been obtained could be ascertained . The scans were randomly arranged and rated as to how well 11 structures in the skull base were visualized: (1) foramen mag...

A 34-year-old woman presented initially with meningococcal meningitis and with Streptococcus mitis meningitis 6 months later. A right cribriform plate area meningoencephalocele was discovered on MRI at the second episode. In retrospect, this abnormality was present on initial MRI (figure). The patient recalled intermittent watery rhinorrhea for 1 year preceding the first meningitis episode, but...

We describe the multimodality treatment regimen of a 53-year-old man diagnosed with olfactory neuroblastoma (Kadish stage C) in the right nasal cavity extending into the ethmoid sinus and across the cribriform plate. Endoscopic surgery for tumor resection was followed by a combination of external beam radiotherapy and stereotactic radiosurgery boost with concurrent chemotherapy. The novel combi...

X-Ray of Skull.-A large osteochondromatous mass had a broad base attachment to the left orbital root extending medially to the cribriform plate and posteriorly almost to the lesser sphenoidal wing. It was capped by two very large osteomatous masses, one of which half filled the left frontal sinus and the other the medial half of the left orbit. The mass extended downwards and medially into the ...

PURPOSE To determine the relative strength, independently and in interaction, of the influence of factors representing the geometry and mechanical properties on the IOP-induced stresses and strains within the optic nerve head (ONH). METHODS A computational model of the eye was developed such that 21 factors could be varied independently or simultaneously. A fractional factorial screening anal...

PURPOSE To determine the configuration of the anterior lamina cribrosa (LC) surface in eyes with different tilt axes. METHODS A total of 114 eyes (66 glaucomatous eyes and 48 healthy eyes) with tilted optic discs (ovality index > 1.3) were divided into vertical- and horizontal-tilt groups according to their optic disc tilt axis. Serial horizontal B-scan images of the ONH were obtained from ea...

PURPOSE We evaluated the prevalence and characteristics of the defects of the lamina cribrosa (LC) in high myopia and glaucoma, and compared them with control eyes using swept-source optical coherence tomography (SS-OCT). METHODS One hundred fifty-nine eyes of 108 participants were divided into four subgroups; high myopia with glaucoma (MG, 67 eyes of 46 subjects), glaucoma without high myopi...