Abstract
Mediastinal thoracic duct cyst is a rare benign cystic disease. The lesion is generally in the post-erior or superior mediastinum, where the thoracic duct passes. We herein report an extremely rare case of surgically resected anterior mediastinal thoracic duct cyst. A thoracic duct cyst should be considered as an uncommon differential diagnosis of an anterior mediastinal lesion.
Highlights
A mediastinal mass is often incidentally discovered when patients undergo evaluation for an unrelated condition or symptom
Phang et al reported that the thoracic duct ascend between the azygos vein and vertebral bodies in about 11% of cases and the duct does not cross to the left but remains on the right in 1% - 6% of cases [2]
The location of the thoracic duct cysts are generally posterior or superior mediastinum where the thoracic duct generally runs in the thoracic cavity
Summary
A mediastinal mass is often incidentally discovered when patients undergo evaluation for an unrelated condition or symptom. The location of the lesion is important to differential diagnoses. Anterior mediastinum is the most common location of mediastinal lesions in adults and thymoma is the most common in the anterior mediastinum tumors followed by germ cell tumors, lymphoma and thyroid tumor. Thoracic duct cyst is a rare mediastinal disease, which is generally located in the posterior or superior mediastinum where the thoracic duct passes and the presence of thoracic duct cysts at other sites is extremely rare
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