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1.
J Comp Pathol ; 165: 6-12, 2018 Nov.
Article in English | MEDLINE | ID: mdl-30502798

ABSTRACT

Studies evaluating histological patterns of lung infiltration by lymphoma in cats are lacking. We evaluated retrospectively the histological patterns of 125 necropsy cases of feline lymphoma collected over a 12-year period. Of the 125 cases, 16 showed lung infiltration (12.8%). Nine cats were female, seven cats were male and all were of mixed breed. Gross lesions observed in the lungs consisted of masses (25%) and nodules (18.7%); however, the majority of cases (56.2%) did not show any gross abnormality. Peribronchial-vascular infiltration (93.7%) was the most frequent pattern, followed by pleural (56.2%), interstitial (50%), nodular (37.5%) and alveolar (12.5%) patterns, but 75% of the cases had more than one pulmonary infiltration pattern. There were 14 (87.5%) B-cell and two (12.5%) T-cell lymphomas. Six cats (37.5%) were positive for feline leukaemia virus and three cats (18.7%) were positive for feline immunodeficiency virus. Diffuse large B-cell lymphoma was the most frequent type, accounting for 56% of all cases.


Subject(s)
Cat Diseases/pathology , Lung Neoplasms/veterinary , Lymphoma/veterinary , Animals , Cats , Female , Male
2.
J Comp Pathol ; 155(2-3): 141-144, 2016.
Article in English | MEDLINE | ID: mdl-27466162

ABSTRACT

Human patients with diabetes mellitus are at increased risk of fungal infections. Diabetes mellitus has also been implicated as a predisposing factor in the establishment of fungal lung infections in cats. Two diabetic cats of different origins presented with severe acute respiratory conditions that resulted in their death. At necropsy examination there was friable, black material in the main bronchi that obstructed the bronchial lumina. Microscopical examination of the lungs revealed the presence of pneumonia, calcium oxalate crystals and a large quantity of fungal hyphae and conidial heads. Fungal infection was confirmed with Grocott's methenamine silver stain. The results of the mycology analysis were compatible with Aspergillus section Nigri.


Subject(s)
Cat Diseases , Diabetes Mellitus/veterinary , Invasive Pulmonary Aspergillosis/veterinary , Animals , Cats , Female , Male
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