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Azygos Vein Varix Mimicking Mediastinal Mass in a Patient With Liver Cirrhosis*: A Case Report

Shih-Yi Lee, MD; Hsu-Tah Kuo, MD, FCCP; Ming-Jen Peng, MD; Fung-J Lin, MD, FCCP; Shou-Chuan Shih, MD; Chin-Yin Sheu, MD; Ching-Chi Lin, MD, FCCP
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*From the Chest Division (Drs. Lee, Kuo, Peng, F-J Lin, and C-C Lin), Gastroenterology Division (Dr. Shih), and Radiology Division (Dr. Sheu), Department of Internal Medicine, Mackay Memorial Hospital, Taipei, Taiwan, ROC.

Correspondence to: Hsu Tah Kuo, MBBS, FCCP, Department of Internal Medicine, Mackay Memorial Hospital, 92 Sec 2, Chung-Shan North Rd, Taipei, Taiwan, ROC; e-mail: Kuohsu@ms2.mmh.org.tw



Chest. 2005;127(2):661-664. doi:10.1378/chest.127.2.661
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A giant venous varix of the azygos arch is a very rare cause of a mediastinal mass. The usual diagnosis of a mediastinal mass by mediastinoscopy or percutaneous fine-needle aspiration or biopsy is very hazardous if there is a venous varix. Noninvasive thoracic CT scanning is a safe and better choice for diagnosis. We describe the case of a woman with a posterior mediastinal mass caused by a giant azygos vein varix. Thoracic CT documented the diagnosis. The etiology of the azygos varix was portal hypertension secondary to liver cirrhosis.

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