This study describes the gross and microscopic findings in the lungs of 450 adult camels at the AL-Ahsa abattoir (352 male and 98 female). The study showed that 14.7% of the examined lungs had one or more lesions. The most common lesions were pneumoconiosis with dilation of the alveoli 12 ( 17.91%), pulmonary fibrosis 9 (13.43%) and hydatid cysts 33 (49.25%). In addition various inflammatory lesions including acute mucous bronchopneumonia 2, (2.98%), chronic bronchial pneumonia 1 (1.49%), lung nodules 1 (1.49%), and lung oedema 3 (4.47%) were observed. Moreover secondary cancers, represented by malignant lymphoma 3 (4.47%) , malignant epithelial cell tumour 2 (2.98) %, and Malignant fibroblastoma 1 ( 1.49%) were seen. Possible explanations for the occurrence of the pulmonary lesions are discussed and the necessary recommendations are made.
Key words: Camel, fibroblastoma, pneumoconiosis, pneumonia, Saudi Arabia