Abstract Background Primary cutaneous signet-ring cell/histiocytoid carcinoma of the eyelid is an extremely rare but aggressive neoplasm diagnosed primarily in elderly men. Until now there are 32 published cases of signet-ring cell carcinoma or histiocytoid carcinoma of the eyelid. We report the clinical. radiographic and histological features of the 33rd reported case of PCSRCC in th... https://www.uvmebrl.com/product-category/spreads-cheese-2/