A case of extralobar pulmonary sequestration mimicking posterior mediastinal tumor

DOI 1 Citations 13 References

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  • 手術により診断しえた肺葉外肺分画症の一例

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We present the case of a 41-year-old male with a 3-cm mass in the left costophrenic angle. Based on chest radiograph and chest CT, a posterior mediastinal tumor was suspected preoperatively. Thoracoscopic surgery revealed that the mass was located in the left pleural cavity and connected to the left costophrenic angle with a thin stalk, but no direct connection to the left lung was observed. Histological analysis revealed that the mass contained immature structures of lung parenchyma, bronchi, and aberrant vessels. The final diagnosis of the present case was extralobar pulmonary sequestration. Extralobar pulmonary sequestration in adults is rare, but should be considered when diagnosing posterior mediastinal tumor.

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