Rare Case of Primary Adenoid Cystic Carcinoma of the Lung With Bilateral Kidney and Liver Metastasis

Adenoid cystic carcinoma (ACC) is a rare epithelial tumor that is found in the salivary glands. It is typically slow-growing and follows an indolent course. While it can hematogenously spread to the lungs, distant metastases are rarely reported. Primary ACC in the lung is not common and makes up only 0.04-0.2% of all primary lung tumors. In addition, metastasis of the ACC to liver and bilateral kidneys is not common frequently documented. In this case report, we present a patient with unusual metastases of ACC, as well as non-specific symptoms that warrant discussion for ACC as potential differentials in the appropriate clinical setting.