The Journal of the Japanese Association for Chest Surgery
Online ISSN : 1881-4158
Print ISSN : 0919-0945
ISSN-L : 0919-0945
A case of sclerosing pneumocytoma with intrabronchial extension
Shota MitsuboshiTakako MatsumotoTamami IsakaHiromi OnizukaEtsuko TagayaMasato Kanzaki
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2020 Volume 34 Issue 1 Pages 46-51

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Abstract

Sclerosing pneumocytoma is a rare tumor, accounting for approximately 1% of all lung tumors. It is difficult to preoperatively diagnose because the histological features of sclerosing pneumocytoma vary. A 48-year-old woman with familial adenomatous polyposis was referred to our hospital for an abnormal shadow. Chest computed tomography showed a solitary nodule with intrabronchial extension occupying the superior segment of the left lower lobe. Bronchoscopy showed a tumor that extended into the superior segmental bronchus, and it was suspected to be lung adenocarcinoma by transbronchial biopsy. She underwent left lower lobectomy and lymph node dissection under thoracoscopy. Histochemical and immunohistochemical investigations confirmed the resected tumor to be sclerosing pneumocytoma. We report a surgical case of sclerosing pneumocytoma with intrabronchial extension, which was suspected to be lung adenocarcinoma.

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© 2020 The Japanese Association for Chest Surgery
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