A Case of Glomus Tumor of the Bronchus with Asthmatic Symptoms

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  • 喘息様症状を呈した気管支グロムス腫瘍の1例

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Abstract

<p>Background. Glomus tumors are rare mesenchymal tumors composed of smooth muscle cells and normal glomus body cells. Glomus tumors of the trachea-bronchus are very rare. Case. A 56-year-old man with asthmatic symptoms visited our hospital. A respiratory function test revealed airway obstruction. Chest computed tomography (CT) revealed a polypoid lesion of 15 mm in diameter in the left upper bronchus. The interrupted appearance of the left main bronchus was observed in trachea-bronchus using a 3D-CT software program. Bronchoscopy revealed a hypervascular polypoid lesion in the left main bronchus. First, the polypoid lesion was removed by rigid bronchoscopy to make a diagnosis, and then the left bronchus was surgically reconstructed. Positive staining of the α-smooth muscle actin of the tumor indicated a glomus tumor. An analysis using the 3D-CT software program revealed that the interrupted appearance of the left main bronchus had disappeared after surgery, and the respiratory function (FEV1.0/FVC) and respiratory impedance normalized after surgery. Conclusion. We experienced a rare case of a patient with asthmatic symptoms due to a glomus tumor of the left main bronchus. The analysis of the trachea-bronchus by a 3D-CT software program as well as conventional CT was very useful for evaluating the outcomes of treatment.</p>

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