scholarly journals Bilateral corneal ulcer and hypovitaminosis A: a case report

2021 ◽  
Vol 5 (2) ◽  
pp. 023-024
Author(s):  
Chaimae Khodriss ◽  
Ahmed Bennis ◽  
Fouad Chraibi ◽  
Meriem Abdellaoui ◽  
Idriss Benatiya Andaloussi
Keyword(s):  
Case Report ◽  
Vitamin A ◽  
Corneal Ulcer ◽  
Vitamin A Deficiency ◽  
Hypovitaminosis A

Vitamin A is a fat-soluble discovered in 1913. Hypo-vitaminosis A can cause blindness by various mechanisms. The aim of this case report is to emphasize the severity of Vitamin A deficiency and its local consequences on the eyes causing corneal ulcerations, abscess and even blindness.

scholarly journals Diagnosis of suspected hypovitaminosis A using magnetic resonance imaging in African lions (Panthera leo)

2005 ◽  
Vol 76 (3) ◽  
Author(s):  
M.P. Hartley ◽  
R.M. Kirberger ◽  
M. Haagenson ◽  
L. Sweers
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Vitamin A ◽  
Vitamin A Deficiency ◽  
Clinical Signs ◽  
Maximum Diameter ◽  
Resonance Imaging ◽  
Non Invasive ◽  
Brain Measurements ◽  
Hypovitaminosis A

Vitamin A deficiency is described in captive lions. Ante mortem diagnosis can either be made by serum analysis or liver biopsy, both of which may be problematic. This study utilised magnetic resonance imaging to identify vitamin A deficiency in lions with relatively mild clinical signs, which could otherwise be attributed to numerous other neurological conditions. Magnetic resonance imaging is a non-invasive, reliable diagnostic tool to demonstrate pathology typically associated with this condition. To accommodate varying lion ages and sizes, a number of cranium and brain measurements were compared with that of the maximum diameter of the occular vitreous humor. Occular ratios of the tentorium cerebelli osseum and occipital bone were most reliable in diagnosing the thickened osseous structures characteristic of hypovitaminosis A. The ratio of maximum : minimum dorsoventral diameter of the C1 spinal cord was also of value.

scholarly journals Vitamin A deficiency in treated cystic fibrosis: case report.

1987 ◽  
Vol 71 (10) ◽  
pp. 787-790 ◽  
Author(s):  
M. O'Donnell ◽  
J. F. Talbot
Keyword(s):  
Cystic Fibrosis ◽  
Case Report ◽  
Vitamin A ◽  
Vitamin A Deficiency

scholarly journals Radiographic analysis of the thickness of the cranial bones in captive compared to wild-living cheetahs and in cheetahs with hypovitaminosis A

PLoS ONE ◽  
2021 ◽  
Vol 16 (8) ◽  
pp. e0255924
Author(s):  
Martin J. Schmidt ◽  
Gerhard Steenkamp ◽  
Peter Caldwell ◽  
Klaus Failing ◽  
Robert M. Kirberger
Keyword(s):  
Vitamin A ◽  
Health Management ◽  
Vitamin A Deficiency ◽  
Serum Levels ◽  
Bone Thickness ◽  
Calvarial Bone ◽  
Presumptive Diagnosis ◽  
Vitamin A Status ◽  
Skull Radiographs ◽  
Hypovitaminosis A

Captive cheetahs often demonstrate a high incidence of diseases in which vitamin A imbalances are implicated. These can occur even under controlled and optimised feeding regimens, which is why surveillance of vitamin A status is mandatory in the successful health management of cheetahs. Serum levels of the vitamin do not reflect the true vitamin A status and liver tissue analysis is rather impractical for routine application in large felids. A biomarker for evaluating overt and subclinical vitamin A deficiency in cheetahs is needed. This study evaluates whether increased calvarial bone thickness can be detected on routine skull radiographs of vitamin A deficient cheetahs compared to unaffected animals, and secondly, evaluates whether there is increased bone thickness in clinically sound captive cheetahs in general compared to wild-living controls. Bone thickness in the neuro- and splanchnocranium was measured in 138 skull radiographs. Significant thickening of the parietal bones was found in latero-lateral radiographs of immature cheetahs (< 12 months) with vitamin A deficiency. This finding may allow a presumptive diagnosis of hypovitaminosis A in immature cheetahs. A general difference in skull thickness between free-living and captive cheetahs was not found.

scholarly journals Ophthalmic Manifestations of Vitamin A and D Deficiency in Two Autistic Teenagers: Case Reports and a Review of the Literature

2015 ◽  
Vol 6 (1) ◽  
pp. 24-29 ◽  
Author(s):  
Emma Duignan ◽  
Paul Kenna ◽  
Rosemarie Watson ◽  
Susan Fitzsimon ◽  
Donal Brosnahan
Keyword(s):  
Vitamin A ◽  
Dietary Habits ◽  
Vitamin A Deficiency ◽  
Case Reports ◽  
Anterior Segment ◽  
Vitamin A Supplementation ◽  
Ophthalmic Manifestations ◽  
Systemic Manifestations ◽  
Time Of Presentation ◽  
Hypovitaminosis A

We describe the cases of 2 autistic children with ophthalmic and systemic manifestations of vitamin A deficiency due to food faddism. Although vitamin A deficiency is common in the developing world, reports in developed societies are rare. Our patients presented over a 1-year period. The patients were 14 and 13 years old at the time of presentation and were both found to have marked features of vitamin A deficiency related to unusual dietary habits. Anterior segment signs of xerophthalmia were present in both patients. In addition, patient 1 showed evidence of a rod-predominant retinopathy, which resolved with vitamin A supplementation. Due to its rare occurrence, hypovitaminosis A must be highlighted and anticipated in this cohort.

scholarly journals Dry eyes — vitamin A deficiency is a differential diagnosis not to be missed: a case report

2021 ◽  
Vol 25 (1) ◽  
pp. 17-19
Author(s):  
Ka-Wai Kam ◽  
Anita LW Li ◽  
Chun-Yue Mak ◽  
Bosco HM Ma ◽  
Alvin L Young
Keyword(s):  
Differential Diagnosis ◽  
Case Report ◽  
Vitamin A ◽  
Vitamin A Deficiency ◽  
Dry Eyes

Vitamin A Deficiency (VAD) After a Duodenal Switch Procedure: a Case Report

2009 ◽  
Vol 20 (3) ◽  
pp. 397-400 ◽  
Author(s):  
Christine Stroh ◽  
Christian Weiher ◽  
Ulrich Hohmann ◽  
Frank Meyer ◽  
Hans Lippert ◽  
...  
Keyword(s):  
Case Report ◽  
Vitamin A ◽  
Duodenal Switch ◽  
Vitamin A Deficiency ◽  
Duodenal Switch Procedure
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