A retrobulbar abscess as an uncommon cause of exophthalmos in a horse

Top, Janetta; Schaafsma, I. A.; Boswinkel, M; Klein, W. R.

doi:10.2746/095777307x254554

Cited by 16 publications

(11 citation statements)

References 24 publications

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“…Several studies have described the diagnostic utility of CT for assessing intracranial structures (Arencibia et al 2000;Cunilleras 2007;Sogaro-Robinson et al 2009;Lacombe et al 2010;Pease et al 2011). However, apart from case reports, utility of CT for evaluation of ophthalmological conditions has not widely been described in horses (Tietje et al 1996;Ramirez and Tucker 2004;van den Top et al 2007;Elce et al 2011). In our cases, CT identified retrobulbar masses, such as abscesses and tumours, intracranial invasion of a tumour and obstruction of the nasolacrimal duct.…”

Section: Fig 6: Left Lateral Static Nuclear Medicine Image Acquired Dmentioning

confidence: 70%

The role of head computed tomography in equine practice

Manso‐Díaz

García‐López

Maranda

et al. 2015

Equine Veterinary Education

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Summary This retrospective study describes the computed tomography (CT) findings in 59 horses presented with diseases of the head over 8 years that underwent CT examination of this region, including dental or sinonasal diseases (Group A) (n = 42), osseous and/or articular diseases (Group B) (n = 11) and soft tissue diseases (Group C) (n = 6). For Group A, radiographic and CT findings comparison was possible. Computed tomography had higher sensitivity (100%) and specificity (96.7%) than radiography in diagnosing dental disease. Compared to CT, radiographic identification of sinus involvement was less sensitive, particularly for ventral conchal and sphenopalatine sinuses and presented an overall sensitivity of 43.5 and 16.7%, respectively. In Group B CT allowed identification of a higher number of bone fragments and fractures in the maxillary, lacrimal, sphenoidal, temporal and zygomatic bones not identified radiographically. Accurate identification of CT changes in the temporomandibular joint and temporohyoid articulation was also possible. Group C included both intra‐ and extra‐cranial disease, retrobulbar masses being the most representative pathology (n = 3). In this group, CT was considered the gold standard for detection of periorbital diseases. We conclude that CT is an imaging technique with high diagnostic value for evaluating the equine head, yielding additional information over multiple radiographic views, which may alter the outcome of the case. Additionally, this paper reports several conditions not previously described using CT.

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Section: Fig 6: Left Lateral Static Nuclear Medicine Image Acquired Dmentioning

confidence: 70%

The role of head computed tomography in equine practice

Manso‐Díaz

García‐López

Maranda

et al. 2015

Equine Veterinary Education

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“…It is superior for the evaluation of soft tissues (retrobulbar mass, meningitis) or identification of foreign material (Van den Top et al . ; Greenberg et al . ).…”

Section: Discussionmentioning

confidence: 99%

“…Zooepidemicus (Van den Top et al . ), Actinomyces , Habronema spp. and Cryptococcus may cause orbital cellulitis (Scott et al .…”

Section: Introductionmentioning

confidence: 99%

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Treatment and ophthalmic sequelae in a horse with facial cellulitis and orbital abscess

Racine

Borer-Germann

Solís

et al. 2016

Equine Veterinary Education

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Summary A 22‐year‐old Quarter Horse gelding with a history of dental (107) extraction 2 weeks previously was presented with facial cellulitis and an orbital abscess. The abscess was drained surgically dorsally and ventrally to the zygomatic arch and the horse was treated with parenteral antimicrobial and anti‐inflammatory drugs. The affected eye was protected with a temporary tarsorrhaphy and treated via a subpalpebral catheter. Six months after presentation, the horse was in excellent general condition and returned to previous level of exercise but showed blindness on the affected side. Pallor of the optic disc and severe attenuation of the retinal vessels, suggestive of optic disc atrophy, were present.

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“…Orbital disease is an uncommon condition in horses but can lead to a significant impact on vision, and subsequently performance. Conditions such as orbital trauma, fractures, inflammatory disease and neoplasia have been reported in horses and the prognosis is dependent upon the underlying cause and duration of signs (Brooks and Wolf 1983;Caron et al 1986;Baptiste and Grahn 2000;Scotty et al 2004;Van den Top et al 2007). Equine orbital disease can pose a challenge to diagnosis of the underlying cause, especially in cases where significant swelling of the tissues is present, preventing adequate visualisation for examination.…”

Section: Introductionmentioning

confidence: 99%