FIG 3. Bilateral dacryocystophlegmon.

a, CTD scan obtained at the level of the lacrimal sac. Dilation of the lacrimal sac, showing dense material inside, with a hyperdense foreign body inside the left one (arrowhead) is visible.

b through d, Four-in-one image with caudocranial contiguous axial T1-weighted MRDc images (600/30/1) using lacrimal canaliculus cannulation. After the injection of a diluted gadopentetate solution, only partial inflow of the contrast medium is appreciated inside the lacrimal sacs (white arrows), with intraluminal exudate being isointense to the cortex. See the small hypointense foreign body on the right lacrimal sac (arrowhead).