Lacrimal Sac Cylindroma Hidden by a Basal Cell Carcinoma

The authors declare no conflicts of interest. The data that support the findings of this study are available on request from the corresponding author. The data are not publicly available due to privacy or ethical restrictions. Figure S1: Histological features of the BCC at the nasal root. (A) In the panoramic image we can see dermal infiltration by an epithelial tumor composed by islands of basalioid cells (H&E. 10×). (B–E) Details of the BCC with irregular islands of basaloid epithelium lined by a palisade with prominent clefts from the adjacent stroma. Central necrosis in some islands is seen in panel E (H&E. 100×). Please note: The publisher is not responsible for the content or functionality of any supporting information supplied by the authors. Any queries (other than missing content) should be directed to the corresponding author for the article.