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Ectopic bone formation in a subsegmental bronchus

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Abstract

A 48-year-old man with fever and dry cough was admitted to our hospital. Imaging examinations revealed a mass lesion with calcification in the right B3b bronchus and atelectasis in the distal lung area. Subsequently, right S3 segmentectomy was performed. There was a hard polypoid mass completely obstructing the right B3b bronchus. Histopathological findings suggested a metaplastic bone formation with mature bone marrow tissue leading to the primary bronchial cartilage. A case of ectopic bone formation in subsegmental bronchus has never been reported thus far. The resident fibroblasts might transform into osteoblasts under appropriate environmental conditions and induce bone formation.

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Authors and Affiliations

  1. Department of General Thoracic Surgery, Osaka City General Hospital, 2-13-22 Miyakojima Hondori, Miyakojima-ku, Osaka, 534-0021, Japan

    Takuma Tsukioka, Rhoji Yamamoto, Makoto Takahama, Ryu Nakajima & Hirohito Tada

Authors
  1. Takuma Tsukioka
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  2. Rhoji Yamamoto
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  3. Makoto Takahama
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  4. Ryu Nakajima
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  5. Hirohito Tada
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Correspondence to Takuma Tsukioka.

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Tsukioka, T., Yamamoto, R., Takahama, M. et al. Ectopic bone formation in a subsegmental bronchus. Gen Thorac Cardiovasc Surg 60, 618–620 (2012). https://doi.org/10.1007/s11748-012-0065-8

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  • DOI: https://doi.org/10.1007/s11748-012-0065-8

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