a study of pulmonary hydatid disease in children. 1. epidemiological and clinical characteristics. | between 1980 and 1994, 244 children (aged 1-15 years) with pulmonary hydatid disease underwent surgery at the emergency medical institute 'n. i. pirogov', sofia, bulgaria. the number of cases/year generally increased with time. initial diagnosis, based on x-rays, ultrasonography and computed tomography, was confirmed by immunology. cysts were either found in the lungs alone (178 cases) or in the lungs and the liver, spleen, kidneys, brain and/or diaphragm (66 cases). most (61.1%) of the cases we ... | 1996 | 8762406 |