Hemothorax with a High Carbohydrate Antigen 19-9 Level Caused by a Bronchogenic Cyst

Akifumi Tsuzuku; Fumihiro Asano; Anri Murakami; Atsunori Masuda; Takuya Sobajima; Yoshihiko Matsuno; Shinsuke Matsumoto; Yoshio Mori; Hiroshi Takiya; Hitoshi Iwata

doi:10.2169/internalmedicine.53.2401

CASE REPORTS

Hemothorax with a High Carbohydrate Antigen 19-9 Level Caused by a Bronchogenic Cyst

Akifumi Tsuzuku, Fumihiro Asano, Anri Murakami, Atsunori Masuda, Takuya Sobajima, Yoshihiko Matsuno, Shinsuke Matsumoto, Yoshio Mori, Hiroshi Takiya, Hitoshi Iwata

Author information

Akifumi Tsuzuku
Department of Pulmonary Medicine, Gifu Prefectural General Medical Center, Japan
Fumihiro Asano
Department of Pulmonary Medicine, Gifu Prefectural General Medical Center, Japan
Anri Murakami
Department of Pulmonary Medicine, Gifu Prefectural General Medical Center, Japan
Atsunori Masuda
Department of Pulmonary Medicine, Gifu Prefectural General Medical Center, Japan
Takuya Sobajima
Department of Pulmonary Medicine, Gifu Prefectural General Medical Center, Japan
Yoshihiko Matsuno
Department of Pulmonary Medicine, Gifu Prefectural General Medical Center, Japan
Shinsuke Matsumoto
Department of Thoracic Surgery, Gifu Prefectural General Medical Center, Japan
Yoshio Mori
Department of Thoracic Surgery, Gifu Prefectural General Medical Center, Japan
Hiroshi Takiya
Department of Thoracic Surgery, Gifu Prefectural General Medical Center, Japan
Hitoshi Iwata
Department of Pathology, Gifu Prefectural General Medical Center, Japan

Keywords: bronchogenic cyst, carbohydrate antigen 19-9, hemothorax

JOURNAL OPEN ACCESS

2014 Volume 53 Issue 17 Pages 1981-1984

DOI https://doi.org/10.2169/internalmedicine.53.2401

Details

Abstract

A 58-year-old man presented with right-sided chest pain. Radiography and computed tomography showed a pleural effusion in the right chest and a mass in the right hilum. Thoracentesis showed a hemothorax. The carbohydrate antigen (CA) 19-9 level in the pleural effusion was very high, requiring differentiation from malignancy. Positron emission tomography showed no significant fluorodeoxy glucose (FDG) accumulation. Magnetic resonance imaging revealed a cystic lesion. The tumor was resected for both a diagnosis and treatment. A pathological examination demonstrated a bronchogenic cyst. An immunohistochemical study suggested that the cyst was the source of the hemothorax and the high CA19-9 level.

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