摘要:

It is not unusual for various ocular diseases to be associated with inflammatory bowel disease. Ocular involvement includes the inflammatory entities of keratitis, conjunctivitis, episcleritis, orbital pseudotumor, iritis and neuroretinitis, as well as those states in which the etiology remains undefined, i.e., scleromalacia perforans, peripheral corneal ulceration and furrow, retinal artery occlusion, and optic neuropathy. We report five cases of optic neuropathy associated with ulcerative colitis to emphasize that this may be the sole ocular manifestation of inflammatory bowel disease.

ISSN:0272-846X    

出版商:OVID    

年代:1984

数据来源: OVID

摘要:

A 42-year-old woman developed headache and epistaxis followed by fever, stiff neck, and loss of vision of the right eye. The diagnosis of simple epistaxis was changed to mucormycosis, then to bacterial meningitis and then to sphenoid sinusitis, before the correct diagnosis of pituitary apoplexy was established by CT scan. Epistaxis is yet another confusing symptom of pituitary apoplexy.

ISSN:0272-846X    

出版商:OVID    

年代:1984

数据来源: OVID

摘要:

A 23-year-old male was seen with acute onset of decreased vision in the right eye. There was no associated facial abnormality, optic disc abnormality, or previous history of head trauma. A computerized tomography scan of the head revealed a soft tissue density in the right ethmoidal sinus. Surgical decompression of the ethmoid sinus for a possible pyocele or mucocele revealed the mass to be cerebral cortex. Successful neurosurgical repair of the defect in the cribiform plate and amputation of the abnormal brain tissue was accomplished with restoration of vision.

ISSN:0272-846X    

出版商:OVID    

年代:1984

数据来源: OVID

摘要:

A 23-year-old woman presented with subacute monocular visual loss clinically resembling optic neuritis. CT scan revealed a cerebellar mass, biopsy of which led to the diagnosis of reticulum cell sarcoma (RCS). Corticosteroid therapy resulted in improvement of vision and a decrease in disc edema; this resolution was documented radiographically. While optic nerve involvement is sometimes seen in association with systemic lymphoproliferative disease, optic neuropathy as a manifestation of primary cerebral RCS is rare.

ISSN:0272-846X    

出版商:OVID    

年代:1984

数据来源: OVID

摘要:

A 49-year-old black female presented with proptosis, orbital pain, decreased visual acuity, and a left frontal bone mass. This lesion resembled a meningioma by computerized tomography and carotid angiography. Following craniotomy, a tissue diagnosis was made of plasmacytoma, with systemic myeloma found by bone marrow biopsy. This case was unusual in its radiographic appearance as plas-macytomas are usually avascular. This case illustrates that orbital plasmacytomas may radiographi-cally mimic other orbital tumors such as meningiomas, melanomas, and orbital carcinomas, and that definitive diagnosis must often depend on his-topathologic study.

ISSN:0272-846X    

出版商:OVID    

年代:1984

数据来源: OVID

摘要:

Ophthalmic complications from moyamoya disease, or multiple progressive intracranial arterial occlusion syndrome, have rarely been reported. This case report describes a patient with this syndrome who developed acute retinal artery occlusion.

ISSN:0272-846X    

出版商:OVID    

年代:1984

数据来源: OVID

摘要:

Sustained upgaze is a rare phenomenon that is observed primarily in those patients with coma secondary to cardiac arrest or prolonged hypotension. Because of “selective vulnerability” of the brain, cardiac arrest or prolonged hypotension may produce both cerebral and cerebellar cortical damage sparing the brain stem vestibulo-ocular reflex (VOR) pathways. This selective damage may be responsible for the generation of sustained upgaze. The VORs receive their selective inhibition from the cerebellar flocculus. This inhibition is exerted on only one of the two VOR pathways converging on each extra-ocular muscle, so that total disinhibition of the VOR pathway activities will result in a tonic upward bias. The underlying neuronal mechanism of sustained upgaze appears to be due to total floccular disinhibition resulting in upward drift produced by the biased VOR and the lack of correcting saccades due to cerebral dysfunction releasing the brain stem ocular motor systems from their control.

ISSN:0272-846X    

出版商:OVID    

年代:1984

数据来源: OVID

摘要:

A patient who suffered traumatic hematomas of both occipitotemporal regions, but who had normal visual acuity, language, and cognitive functions, could not recognize faces of family members, celebrities, or recent acquaintances (prosopagnosia). He could distinguish same from different faces when they were presented simultaneously, but could not recognize faces that had been presented to him 90 seconds earlier. He could read and name objects correctly, but could not recognize any previously viewed object if it was reexamined later with other objects of the same semantic class. He had no difficulty copying complex figures, but synthesized incomplete visual information poorly and pursued an abnormal visual search strategy.We suggest that prosopagnosia is part of a more general inability to distinguish among objects within a visual semantic class. It results from impaired visual memory and perception caused by visual association cortex damage and interruption of the inferior longitudinal fasciculus connecting visual association cortex and temporal lobe.

ISSN:0272-846X    

出版商:OVID    

年代:1984

数据来源: OVID

摘要:

A 26-year-old man with the diagnosis of paroxysmal nocturnal hemoglobinuria presented with papilledema due to increased intracranial pressure without localizing neurological signs. It is concluded that papilledema and benign intracranial hypertension could result from a cerebral vein thrombosis which can complicate the course of paroxysmal nocturnal hemoglobinuria. This has not been a well-recognized feature of the disease.

ISSN:0272-846X    

出版商:OVID    

年代:1984

数据来源: OVID

摘要:

We report a case of orbital aneurysmal bone cyst, a rare orbit tumor with unusual clinical features.

ISSN:0272-846X    

出版商:OVID    

年代:1984

数据来源: OVID