A 73-year-old woman with well-differentiated SCCA of the lacrimal sac and nasolacrimal duct. A 73-year-old woman with well-differentiated SCCA of the lacrimal sac and nasolacrimal duct. A, Post-contrast-enhanced CT demonstrates an enhancing tumor within the left lacrimal sac (arrow). B, At a slightly more inferior level (bone window), note the mild expansion of the lacrimal bony canal by tumor (arrow). V.A. Kumar et al. AJNR Am J Neuroradiol 2016;37:2134-2137 ©2016 by American Society of Neuroradiology