How Common Are Brain Tumors Seen in Spasmus Nutans?
Discussion Nystagmus is periodic eye movement that is involuntary where there is a slow drift of fixation. The slow drift can be followed by a fast saccade back to fixation. The pathological movement is the slow phase, but nystagmus is described by the fast phase (i.e. horizontal nystagmus, vertical nystagmus). Spasmus nutans (SN) is a movement disorder that is rare. The classic triad includes nystagmus, head bobbing or titubation, and torticollis, with these problems being in the absence of any ophthalmological or neurological condition. Onset is in the first year of life but ranges from 6-36 months. Time to resolution is sometimes stated as 1-2 years, but others disagree citing longer time frames. There is no harm to visual acuity. The SN nystagmus is usually intermittent, high frequency of small or low amplitude. It is “…variably disconjugate or disjunctive, greater in the abducting eye, and may have a vertical component.” Amblyopia and strabismus may coexist with SN. The head bobbing is irregular may have both vertical and horizontal components. Torticollis occurs as the child moves the head to try to obtain better visual acuity. The differential diagnosis of torticollis can be reviewed here. The differential diagnosis of SN includes ophthalmic problems such as congenital (infantile) nystagmus (a review can be found here), refractive disorders and retinal diseases, and problems of the central nervous system such as optic chiasm gliomas, diencephal...
[Unilateral Irregularities in the Macular Pigment Epithelium in a 38-Year-Old Patient - "Acute Retinal Pigment Epitheliitis"]. Klin Monbl Augenheilkd. 2020 Oct 09;: Authors: Wykrota AA, Löw U, Fries FN, Seitz B, Abdin AD PMID: 33036057 [PubMed - as supplied by publisher]
Publication date: Available online 10 October 2020Source: Journal of American Association for Pediatric Ophthalmology and StrabismusAuthor(s): Mary-Grace Reeves, Angeline Nguyen, Benjamin Erickson
Publication date: Available online 9 October 2020Source: Journal of American Association for Pediatric Ophthalmology and StrabismusAuthor(s): Xi Chen, Ryan Imperio, Kai R. Seely, Christian Viehland, Joseph A. Izatt, S. Grace Prakalapakorn, Sharon F. Freedman, Cynthia A. Toth
Publication date: Available online 9 October 2020Source: Journal of American Association for Pediatric Ophthalmology and StrabismusAuthor(s): Nora Mahmoud Mohammed, Mahmoud Ahmed Kamal, Mohammed Ahmed Abdelhafez, Mostafa Mohammed Diab
Publication date: Available online 9 October 2020Source: Journal of American Association for Pediatric Ophthalmology and StrabismusAuthor(s): Amir Sternfeld, Syeda Sumara Taranum Basith, Sudhi P. Kurup, Surendra Basti
Publication date: Available online 9 October 2020Source: Journal of American Association for Pediatric Ophthalmology and StrabismusAuthor(s): Selcen Çelik, Aslı İnal, Osman Bulut Ocak, Ebru Demet Aygıt, Zahid Hüseyinhan, Ceren Gürez, Işıl Paşaoğlu, Birsen Gökyiğit
CONCLUSIONS: Neuro-ophthalmologic findings are mostly normal in patients with visual snow syndrome. Retinal or neurological diseases must be excluded as possible causes of visual snow. PMID: 33029971 [PubMed]
Authors: Kim EH, Shim WH, Lee JS, Yoon HM, Ko TS, Yum MS Abstract BACKGROUND AND PURPOSE: Recent quantitative neuroimaging studies of childhood absence epilepsy (CAE) have identified various structural abnormalities that might be involved in the onset of absence seizure and associated cognitive and behavioral functions. However, the neuroanatomical alterations specific to CAE remain unclear, and so this study investigated the regional alterations of brain structures associated with newly diagnosed CAE. METHODS: Surface and volumetric magnetic resonance imaging data of patients with newly diagnosed CAE (n=18) an...
CONCLUSIONS: Paramagnetic rims might be a characteristic MRI finding for MS, and therefore they have potential as an imaging marker for differentially diagnosing MS from NMOSD using 3-T MRI. PMID: 33029961 [PubMed]
CONCLUSION: GA-MRI is an effective noninvasive method that may be useful for the differentiation of NASH from isolated steatosis, and could help to avoid liver biopsy in patients with NAFLD. PMID: 33033571 [PubMed]
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