J Korean Soc Radiol.  2019 Nov;80(6):1281-1285. 10.3348/jksr.2019.80.6.1281.

Bronchogenic Cyst in Posterior Mediastinum with Butterfly Vertebra: A Case Report

• Kim M
• Park HJ
• Ko JM
• Yoo J

• KMID: 2464928
• DOI: http://doi.org/10.3348/jksr.2019.80.6.1281

Abstract

Most mediastinal cystic masses result from abnormal development of the embryo. Common developmental cysts in the posterior mediastinum are bronchogenic, neurenteric, and esophageal duplication cysts. These cystic masses appear identical on CT, but a cystic lesion adjacent to the esophagus is usually an esophageal duplication cyst, and a cyst associated with vertebral anomalies indicates a presumptive diagnosis of a neurenteric cyst. Herein, we present the case of a 27-year-old man with a bronchogenic cyst in the posterior mediastinum with a butterfly vertebra.

MeSH Terms

Adult
Bronchogenic Cyst*
Butterflies*
Diagnosis
Embryonic Structures
Esophagus
Humans
Mediastinal Cyst
Mediastinum*
Neural Tube Defects
Spinal Dysraphism
Spine*

Figure

• 

  Fig. 1 Bronchogenic cyst in the posterior mediastinum with butterfly vertebra in a 27-year-old man. A. Chest X-ray image shows a well-defined mass (M) in the left paravertebral area, obscuring the left paraaortic interface (arrows) and paravertebral stripe (arrowheads). These findings suggest that the mass is located in the posterior mediastinum. The curvature of the thoracolumbar spines is S-shaped, representing mild scoliosis. B. Contrast-enhanced axial CT image shows a cystic mass with homogeneous fluid attenuation in the left paravertebral area, at the 11th thoracic vertebral level. The cyst wall has no definite boundary or calcifications. C. Coronal CT image shows that the 6th thoracic vertebral body has a sagittal cleft with a butterfly appearance (arrows). The cystic mass is seen partly caudal to the vertebral defect. Scoliosis is also seen. D. Micrograph shows ciliated pseudostratified columnar epithelium, smooth muscle fibers, and mature cartilage (hematoxylin and eosin stain, × 100).

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