A rare case of azygos arch tumor thrombus in a patient with esophageal squamous cell carcinoma: A case report.

Esophageal cancer (EC) is among the top ten worldwide causes of cancer related morbidity and mortality. Squamous cell carcinoma (SCC) accounts for over 90% of all cases in sub-Saharan Africa [1]. Azygos arch and azygos vein tumor thrombus in esophageal squamous cell carcinoma (ESCC) is a rarely reported phenomenon. We report a case of tumor thrombus in the azygos vein and arch in a patient with esophageal squamous cell carcinoma. To date only a single case of such tumor thrombus in the arch of the azygos vein have been reported which was subsequently managed with neoadjuvant chemotherapy followed by radical resection [2].