Round  pneumonia is a disease of childhood. Chest x-ray is the first and inexpensive modality of its diagnosis however there are few articles in describing the radiographic appearance of this entity. So we evaluated  chest x-ray of 24 cases with nflue –radiologically proved round pneumonia in our hospital in a period of 12 years. Age, sex, clinical and radiological findings of location, number of lesion are evaluated.

According to this study mean age of patients was 4 years old(1 month -11 years). 10 cases (42%) were female and 14 cases (58%) were male with male / female ratio of 1.4/1. Clinical symptoms were fever, chill, cough and shortness of breath in23 cases and presenting as acute abdomen in one case.22 cases (92%) revealed only one lesion and 2 cases(8%) had 2 and 3 lesions. Location of lesions were as follow, right upper lobe 37.5%, right lower lobe 37.5%, left lower lobe 12.5%, left upper lobe 8.3% and right upper and right lower lobe simultaneously 4.2%. conclusion: like other study most of round pneumonia occur under 8 years of age and all of them was under 12 years old. This pneumonia presented as solitary lesion which more common involvement of lower lobes.