Faecal Occult Blood Test

Case of the Month (Emma Scurrell July 2012)

Retrobulbar grass seed in a dog

A 2-year-old male English Springer Spaniel presented with a 4-week history of intermittent unilateral pain, swelling, redness and purulent discharge affecting the left eye. 



Fig 1. This is a macroscopic photograph of the eye  which has been sectioned in half. Part of a grass seed (red arrow) is visible embedded posterior to the globe associated with chronic fibrosis. There is subchoroidal abscessation (yellow arrow) and hypopyon.




 

 







Final Diagnosis

Retrobulbar grass seed migration associated with chronic suppurative inflammation and endophthalmitis 


Discussion


These grass seeds typically enter the orbit either via migration from behind the third eyelid, through the conjunctiva or via the oral cavity.  Given enough time, the majority will penetrate the posterior sclera and enter the globe. Large bacterial colonies are frequently embedded within the foreign plant material and a suppurative endophthalmitis typically ensues.

Previous Monthly Cases

Hypertensive Retinopathy January 2010
FIP in a cat - uncommon presentation February 2010
Phaeohyphomycosis    March 2010 
Scleral Rupture April 2010
Canine and feline epulides May 2010
Erythema multiforme in a labrador retreiver June 2010
Keloidal fibrosarcoma in a labrador retreiver July 2010
Cutaneous epitheliotropic lymphoma  August 2010 
Benign cutaneous histiocytoma  September 2010 
Iridociliary adenoma October 2010
Proliferative thrombovascular necrosis of the pinnae November 2010
Signet-ring cell carcinoma in the stomach of a dog December 2010
Cutaneous infiltrative lipoma in a labrador January 2011

Tonsillar squamous cell carcinoma February 2011
Canine orbital meningioma March 2011
"Lung-digit" syndrome in a cat April 2011
Hepatic amyloidosis in a cat May 2011
Haemophagocytic histiocytic sarcoma June 2011
Alternaria spp. infection in an immunocompromised dog July 2011
Ocular manifestation of lymphoma in a cat  August 2011
Kerion dermatophytosis in a Cocker spaniel September 2011
Subcuticular coenurus in a rabbit  October 2011
Optic nerve glioma in a dog November 2011
Malignant transformation of a viral papilloma in a dog  December 2011
Uveodermatological syndrome in an Akita
January 2012
Cutaneous angiostomatosis in a dog  February 2012
Transitional cell carcinoma in a dog  March 2012
Corneal inclusion cysts in a dog   April 2012
Extraskeletal osteosarcoma in a dog  (May 2012)
Subungual melanoma in a dog  (June 2012)



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Faecal Occult Blood Test