This study was undertaken to find out gross and microscopic pulmonary lesions of dromedary camels in the central part of Iran. The grossly affected lungs from 100 camels with different ages and unknown history were collected from freshly slaughtered animals at Najafabad abattoir and examined grossly and histopathologically. The pathological changes observed were purulent bronchopneumonia (I%), interstitial.pneumonia (14%), anthracosis (4%), hydatid cysts (51%), atelectasis (lo%), emphysema (7%), and bullous emphysema (l0/o). In this study, interstitial pneumonia with different histological appearances was the most common form of pneumonia in the examined camels that may indicate various etiological agents or developmental stages of pneumonia. Numerous focal infiltrations of mononuclear inflammatory cells without fibroplastic reaction were associated with anthracosis.

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