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Vol.58 No.1 contents Japanese/English

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Article in Japanese

- Case Report -

A Case of Rapidly Progressing Pulmonary Carcinosarcoma with a Difficult Antemortem Diagnosis

Michiyo Miyawaki1, Miyuki Abe1, Yohei Takumi1, Atsushi Osoegawa1, Motoki Arakane2, Kenji Sugio1
1Department of Thoracic and Breast Surgery, 2Department of Diagnostic Pathology, Oita University Faculty of Medicine, Japan

Background. Pulmonary carcinosarcoma is an extremely rare malignant lung tumor that shows a poor prognosis. Case. The patient was a 77-year-old man. A lung tumor of 7 cm in diameter with coarse calcification was detected in the right lower lobe in a medical examination. Transbronchial lung biopsy was performed twice, but did not result in a definitive diagnosis. The patient was referred to our hospital for further examination. The tumor rapidly increased in size before bronchoscopy could be performed and the patient developed hemothorax and died of acute respiratory failure. Autopsy was performed and lung carcinosarcoma was diagnosed. There was only a 3-month interval between the medical examination and death. Conclusion. We presented a case of pulmonary carcinosarcoma that rapidly progressed during the examination period, resulting in the patient's death due to acute respiratory failure. Patients presenting with lung tumors with coarse calcification should undergo immediate treatment because the tumor may reflect a component of sarcoma.
key words: Lung cancer, Carcinosarcoma, Hemothorax, Respiratory failure, Autopsy

Received: September 1, 2017
Accepted: November 15, 2017

JJLC 58 (1): 35-40, 2018

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