“…Histologically, the lesion is composed by various sized aggregations of foamy cells showing small round shaped nuclei with periphery location and an abundant cytoplasm. Differential diagnosis includes poorly differentiated carcinoma, storage diseases, infections, macroglobulinemia, and muciphages [1][2][3][4][5][6][7][8]. The clinical presentation together with the past medical history, symptoms of storage diseases, acquired immuno-deficiency syndrome, and/or macroglobulinemia, is essential.…”