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Mediastinal thoracic duct cyst
Insights
A rare thoracic duct cyst was surgically removed from a 34-year-old man. Ligation of the cyst
Area of Science:
- Thoracic surgery
- Surgical pathology
- Vascular anomalies
Background:
- Mediastinal cysts are rare, necessitating accurate diagnosis and treatment.
- Thoracic duct cysts are uncommon cystic lesions originating from the thoracic duct.
Observation:
- A healthy 34-year-old man presented with a mediastinal cyst identified via imaging.
- Surgical intervention was performed for the mediastinal cyst.
Findings:
- The cyst was diagnosed as a thoracic duct cyst based on its location, contents, and immunohistologic staining for factor VIII-related antigen.
- Pathologic examination confirmed the diagnosis of thoracic duct cyst.
- This report adds to the 26 previously documented cases of thoracic duct cysts.
Implications:
- Ligation of the inferior pedicle of the thoracic duct cyst is crucial for preventing postoperative chylothorax.
- Understanding the pathology and surgical management of thoracic duct cysts is important for thoracic surgeons.
Abstract:
A healthy 34-year-old man had a mediastinal cyst on the imaging study. Surgical treatment was performed. The cyst was diagnosed as a thoracic duct cyst from its anatomic location and contents. Pathologic examination found it to be consistent with thoracic duct cyst. Endothelial cells on its luminal surface were identified by an immunohistologic stain with the factor VIII-related antigen. Twenty-six cases of thoracic duct cysts have been reported. We report an additional case and review the previously reported cases. We found that the ligation of the inferior pedicle of the cyst is essential to prevent postoperative chylothorax.