Cancer Res Treat.  2009 Dec;41(4):237-240.

Pseudoaneurysm Due to Squamous Cell Carcinoma of the Lung: Two Cases of Spontaneous Resolution after Chemotherapy

• Kim SY
• Kim HR
• Song JS
• Hwang KE
• Shin JH
• Shin SN
• Kim D
• Park SH
• Yang SH
• Jeong ET

Abstract

Pseudoaneurysm due to cancer is uncommon generally and is extremely rare in lung cancer. We report two cases of false aneurysms due to lung cancer that spontaneously regressed upon chemotherapy without intervention. Both patients had squamous cell carcinoma of the lung and the diagnosis of a pseudoaneurysm was made using computed tomography. There was no evidence of severe bronchial hemorrhage and the psuedoaneurysms were small and well-encased. Chemotherapy was performed and the pseudoaneurysms resolved.

Keyword

Aneurysm; False; Lung neoplasms

MeSH Terms

Aneurysm
Aneurysm, False
Carcinoma, Squamous Cell
Hemorrhage
Humans
Lung
Lung Neoplasms

Figure

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  Fig. 1 CT observations for case 1. (A) Chest CT scan on admission demonstrated a central lung mass at the level of the carina, with no central enhancement within the mass in the pre-enhance CT. (B) A highly enhancing component within the mass was evident in the enhanced CT, similar in attenuation to that of the major vessels (black arrow).

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  Fig. 2 Contrast-enhanced CT scan performed after the third cycle of combination chemotherapy of docetaxel and cisplatin for case 1. CT revealed a marked decrease in the size of the carinal lesion compared with an earlier study, and no central enhancing component.

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  Fig. 3 CT observations for case 2. (A) Contrast-enhanced CT in the arterial phase revealed a heterogenous mass in the right upper lobe with a strongly enhancing 1.4 cm central area (black arrow). (B) The central enhancement was washed out in the delayed phase, compatible with a pseudoaneurysm of the artery.

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  Fig. 4 Contrast-enhanced CT scan performed after the third cycle of combination chemotherapy of docetaxel and cisplatin for case 2. CT revealed significant decrease in the size of the mass and changed into a cavitary formation without central enhancement.

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