Analysis of Pulmonary Hydatidosis According to Their Segmentary Locations

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The objective of this analysis is to compare the pulmonary locations of lung hydatid cysts and their size with respect to their locations with available literature. The records of 82 patients who were operated for pulmonary hydatid cysts between January 2001 and December 2005 were retrospectively evaluated. One hundred eleven cysts detected in 82 patients were placed into 2 groups as those located in the right lung (group A, 55 cysts) and those located in the left lung (group B, 56 cysts), and the segments involved were investigated. The gender distribution of the patients was 40 male and 42 female, with a mean age of 35.2 ± 17.64 years (range: 7–82 years). No difference was detected with respect to involvement between the 2 lungs (P = 0.285). The most commonly involved segment was the posterior basal segment of the lower lobe with 15 cysts (27.3%) from group A and 20 cysts (35.7%) from group B. No involvement of the lower lobe medial basal and anteromedial basal segments was observed. The most common surgical procedures applied were cystotomy and capitonnage. The findings of the study showed that pulmonary hydatidosis were located in some segments of the lungs more frequently, primarily in the posterior segment of the lower lobe and the apicoposterior segment of the upper lobe. In addition, the higher prevalence of giant cysts in the lower lobe and their ability to produce symptoms only after being enlarged suggest a role of mechanisms other than elasticity of the lungs.

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