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Abstract

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Article in Japanese

Diagnostic Imaging

A case of traumatic pulmonary pseudocyst increasing in size monthly that healed spontaneously after needle aspiration

Yuki Tenjin  Kei Muramoto  Masafumi Wada  Nobumasa Oomura  Tatsuyoshi Sakamoto  Sadanobu Higuchi 

Department of Internal Medicine, Kamiamakusa General Hospital

ABSTRACT

An 83-year-old man was admitted to our hospital in July 2013 showing an abnormal mass shadow with niveau in the left lower lobe on his chest radiography. He had no clinical symptoms or abnormal findings in his blood test. We performed ultrasonographic-guided needle aspiration as a diagnostic procedure. The cyst fluid was bloody (Hb 8.7 g/dl, Ht 33.1%), suggesting hemothorax. We considered the possibility of traumatic pulmonary pseudocyst caused by a motorbike traffic accident he experienced in April 2012. Series of his chest radiographies showed that the cyst size had increased monthly. A traumatic pulmonary pseudocyst is considered as a rare lung complication of a blunt chest trauma. We discussed the pathogenesis and healing mechanism in this case.

KEYWORDS

Traumatic pulmonary pseudocyst  Blunt chest trauma  Rib fracture  Chest computed tomography 

Received 20 Sep 2013 / Accepted 6 Mar 2014

AJRS, 3(4): 603-606, 2014

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