The Journal of the Japan Society for Respiratory Endoscopy
Online ISSN : 2186-0149
Print ISSN : 0287-2137
ISSN-L : 0287-2137
A Case of Benign Metastasizing Leiomyoma of the Bronchus Detected by Repeated Obstructive Pneumonia
Yosuke ShimizuYoshitaka ItoKeiichiro TakaseToru KojimaJunya NakayaWataru Yamaguchi
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2012 Volume 34 Issue 6 Pages 611-615

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Abstract

Background. The benign metastasizing leiomyoma is the rare clinical condition that a benign uterine leiomyoma causes metastasis to the other organ. Case. A 37-year-old woman underwent hysteromyomectomy at the time of childbirth by cesarean section 4 years ago. She had a history of hospitalization due to pneumonia of the right lower lobe. This time, she consulted our hospital with chief complaints of cough and fever. A careful examination was performed, and obstructive pneumonia due to a mass of 6mm in diameter which almost occluded right B^<10>_b was diagnosed. The mass was diagnosed as leiomyoma by biopsy. Because obstructive pneumonia was recurrent, and inflammation spread to the adjacent segment, right basal segmentectomy was performed after inflammation calmed down by antibiotics. Histopathologically, the mass consisted of the similarity with poorly acidophilic atypical fusiform cells. In consideration of the pathologic findings of the previous uterine myoma and results of the immunostaining, it was diagnosed as metastasis to the bronchus of the benign uterine leiomyoma. Conclusion. We report a case of benign metastasizing leiomyoma of the bronchus, which has not previously been reported.

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© 2012 The Japan Society for Respiratory Endoscopy
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