Pembrolizumab in a Patient With a Metastatic CASTLE Tumor of the Parotid
Carcinoma showing thymus-like elements (CASTLE) is a rare tumor, most commonly found in the thyroid gland.Here we report a case of CASTLE tumor localized to the parotid gland, recognized in retrospect after a late manifestation Horse Chestnut of symptomatic pleural carcinomatosis.The original tumor in the parotid gland was treated by surgery follow