A challenging case: Painful periocular swelling in a cat

DIFFERENTIAL DIAGNOSES Differential diagnoses for bilateral ocular and orbital disease in this case included infectious causes such as systemic fungal disease (cryptococcosis, aspergillosis, blastomycosis, penicilliosis, histoplasmosis)19 or aerobic or anaerobic bacteria,1011 neoplastic processes (l...

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Bibliographic Details
Published inVeterinary medicine (1985) Vol. 108; no. 4; p. 179
Main Authors Carter, Renee T, Kubai, Melissa, Rodriguez, J Daniel, Gupta, Aradhana, Royal, Angela B
Format Journal Article
LanguageEnglish
Published North Olmsted MultiMedia Healthcare Inc 01.04.2013
Subjects
Fungal infections
Organisms
Radiography
Teaching hospitals
Ulcers
Ultrasonic imaging
Veterinary medicine
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Summary:DIFFERENTIAL DIAGNOSES Differential diagnoses for bilateral ocular and orbital disease in this case included infectious causes such as systemic fungal disease (cryptococcosis, aspergillosis, blastomycosis, penicilliosis, histoplasmosis)19 or aerobic or anaerobic bacteria,1011 neoplastic processes (lymphosarcoma, squamous cell carcinoma, osteoma, osteosarcoma, fibrosarcoma),10,12,13 and primary inflammatory disorders (eosinophilic, pseudotumor).11,14,15 DIAGNOSTIC TESTS Because of the patient's fractious nature, the cat was placed under general anesthesia and intubated to allow maintenance of anesthesia with isoflurane while a complete blood count (CBC), a serum chemistry profile, thoracic radiography, and orbital and ocular ultrasonography and aspiration were performed. Diagnosis Diagnosing this condition can be challenging since serologic tests for H. capsulatum antigen often yield false negative results in patients with active disease.7,19 Thus, identification of the organism on cytologic preparations is the most likely way to obtain a rapid definitive diagnosis.5 Although ocular aspiration was not performed in this case to confirm the organisms within the eye, it has been reported that in cats with systemic mycoses, intraocular inflammation is caused by the organism within the eye and not as a result of a systemic inflammatory response.9 Recently, urine antigen testing (MVista- MiraVista Diagnostics) has become an important tool in the diagnosis of histoplasmosis.
ISSN:8750-7943
1939-1919