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Fig. 9 | Parasites & Vectors

Fig. 9

From: Heartworm-associated respiratory disease (HARD) induced by immature adult Dirofilaria immitis in cats

Fig. 9

Radiographs of a cat from Group B: Day 110. Left lateral and ventrodorsal radiographs of a cat from Group B (oral ivermectin every 2 weeks initiated on Day 70 PI) with no heartworms at necropsy on Day 240. This cat was heartworm antibody and antigen negative. Day 0 radiographs were normal, and did not differ from Group A cats on Day 0–240 and Group C cats on Day 0. The lungs revealed an interstitial and bronchial pattern on Day 110 more marked in the caudal lung lobes which became more severe on Day 175, with anterior lobes becoming more involved. The pulmonary arteries could not be clearly defined because of the severity of the lung parenchymal disease. On Day 240, the lung disease continued to be evident and the left caudal pulmonary artery was slightly more pronounced beyond the cardiac silhouette. The heart and main pulmonary artery were not enlarged

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