Binasal hemianopia caused by pneumosinus dilatans of the sphenoid sinuses

Kim, Won Jae; Kim, Myung-Mi

doi:10.4103/ijo.ijo_1580_18

Cited by 9 publications

(11 citation statements)

References 10 publications

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“…In the cases reported in the literature, a congenital cause for the binasal hemianopia was postulated, with proposal of a defective organization of the temporal retina fibers resulting in manifestation of these congruous binasal defects, therefore affecting the visual pathway posteriorly to the lateral geniculate nucleus. [ 6 ] However, we do not advocate the same hypothesis for our case. Our diagnosis secondary to all normal investigations was likely functional with no organic pathology being identified.…”

Section: Discussioncontrasting

confidence: 52%

“…Organic causes of this unusual field defect include brain space occupying lesions, keratoconus, bilateral internal carotid aneurysms, neurosyphilis, optic neuropathy, optic disc drusen and optic nerve pits, retinitis pigmentosa sine pigmento, as well as pneumosinus dilatans of the sphenoid sinuses. [ 1 – 6 ] In binasal hemianopia with an identifiable organic cause, the field defects were incomplete except in the case of pneumosinus dilatans of the sphenoid sinuses, where the defects were complete. In our case, the field defects were also complete as shown in Figure 1 .…”

Section: Discussionmentioning

confidence: 99%

“…Binasal hemianopia is an unusual visual field defect that is rarely encountered by both neuro-ophthalmologists and neurologists. There have been a few cases in literature with binasal hemianopia with an identifiable organic cause [ 1 – 6 ] and 3 cases with no obvious identifiable organic cause. [ 7 , 8 ] In the first 5 referenced manuscripts, the binasal field defects were incomplete, [ 1 – 5 ] whereas in the sixth the binasal defects were complete.…”

Section: Introductionmentioning

confidence: 99%

“…[ 7 , 8 ] In the first 5 referenced manuscripts, the binasal field defects were incomplete, [ 1 – 5 ] whereas in the sixth the binasal defects were complete. [ 6 ] In the 3 cases with no obvious identifiable organic cause, the binasal field defects were complete as well. [ 7 , 8 ] In this manuscript, we describe another case of complete congruous binasal hemianopia with an otherwise normal ocular examination, normal neuroimaging and normal multimodal imaging of both retinas and optic discs.…”

Section: Introductionmentioning

confidence: 99%

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Binasal congruous hemianopia secondary to functional visual loss

Tsokolas¹,

Khan

Tyradellis³

et al. 2020

Medicine

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Introduction: To describe an unusual case of binasal congruous hemianopia secondary to functional visual loss (FVL). Patient concerns: A 24 year-old male was referred originally by his optician at the Emergency Eye Department of the Leicester Royal Infirmary in October 2018 with visual field changes affecting the nasal field of vision in both eyes on routine eye examination. The patient reported ongoing headaches over the last 6 weeks to 8 weeks associated with simultaneous peripheral visual field changes. He also reported rapid loss of weight over the same period of time. Diagnosis: Binasal congruous hemianopia secondary to FVL. Interventions: Full past medical and ocular history was obtained. The patient underwent full ophthalmic examination including dilated fundoscopy. Visual acuity was recorded with Snellen Chart. Color vision was assessed with Ishihara plates. Peripheral vision was assessed with both Humphrey visual fields and Goldmann visual fields. Optical coherence tomography of the macula and discs was also performed. Neuroimaging investigations included Computerized Tomography (CT) and Magnetic Resonance Imaging (MRI) of the Brain. Electrophysiology investigations included Electroretinogram and visual evoked potentials. Patient was also tested for syphilis. Outcomes: Humphrey visual fields and Goldmann visual fields confirmed the presence of complete binasal field defects. Optical coherence tomography, electroretinogram, visual evoked potentials, CT, MRI were all unremarkable. Ocular examination was normal. Finally, syphilis serology was negative. After 1 year of follow-up, the visual field changes have remained the same. Conclusion: To the best of our knowledge, this is the fourth case described in the literature with complete congruous binasal hemianopia due to FVL. We advocate thorough investigations with multimodal imaging of the fundus, neuroimaging and syphilis serology to exclude serious organic causes for binasal field defects prior to labeling such a field defect functional. Such patients may benefit from neuropsychological input to understand the psychological factors that may be contributing to the symptoms.

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Section: Discussioncontrasting

confidence: 52%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Binasal congruous hemianopia secondary to functional visual loss

Tsokolas¹,

Khan

Tyradellis³

et al. 2020

Medicine

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“…Die Erkrankung ist nicht zwingend mit Beschwerden verknüpft, kann aber in einigen Fällen lokales Druckgefühl und Cephalgien verursachen. Während der Befall der Stirnhöhle zu kosmetischen Beeinträchtigungen für den Patienten führen kann, existieren Fallberichte mit ophthalmologischen Komplikationen bei Lokalisation im Siebbein oder der Keilbeinhöhle [70][71][72] [85,86]. Diverse Studien haben die Charakteristika der Erkrankung analysiert, allerdings ohne genauere Daten hinsichtlich der Inzidenz zu liefern [85][86][87].…”

Section: Pneumosinus Dilatansunclassified

Seltene Erkrankungen der Nase, der Nasennebenhöhlen und der vorderen Schädelbasis

Sommer

2021

Laryngorhinootologie

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ZusammenfassungSeltene Erkrankungen der Nase, der Nasennebenhöhlen und der vorderen Schädelbasis stellen aufgrund der niedrigen Inzidenz und den daraus resultierend eingeschränkten diagnostischen Kriterien sowie therapeutischen Optionen eine Herausforderung dar. Der Schwellenwert, ab dem eine Erkrankung als selten zu werten ist, liegt bei höchstens 5 Betroffenen pro 10 000 Personen. Innerhalb dieser Erkrankungen gibt es allerdings extreme Schwankungen. So gehören einige seltene Erkrankungen, wie z.B. das invertierte Papillom, zu den regelmäßig diagnostizierten und therapierten Krankheitsbildern einer größeren Klinik für Hals-Nasen-Ohrenheilkunde. Andererseits liegen bei anderen seltenen Erkrankungen und Fehlbildungen weltweit deutlich unter 100 Fallberichte vor, was die Notwendigkeit einer Bündelung der verfügbaren Erfahrung zu Diagnostik und Therapie unterstreicht.Die vorliegende Arbeit gibt eine Übersicht zu seltenen Erkrankungen der Nase, der Nasennebenhöhlen und der vorderen Schädelbasis aus den übergeordneten Bereichen Erkrankungen / Syndrome des olfaktorischen Systems, Fehlbildungen der Nase und Nasennebenhöhlen, Belüftungs- und Funktionsstörungen sowie benigne und maligne Tumore. Die Einordnung sowie Angaben zu Diagnostik und Therapiemöglichkeiten wurden unter Berücksichtigung der aktuellen Literatur erstellt.

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