PMC4943765_01
Patient at presentation following recurrence of epiphora 1 year after right external dacryocystorhinostomy.
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F1
A right medial canthal lump extending above the tendon was noted with the absence of cellulitis (fig. 1).
MRI with T1 (a) and T2 (b) weighting showing the presence of lacrimal sac mass at the time of presentation. The cavernous sinus is disease free.
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F2
Magnetic resonance imaging (MRI) of the orbit and paranasal sinuses showed an area of marked scarring in the site of the previous osteotomy (fig. 2).
T2-weighted MRI (a, b) showing the presence of a mass surrounding the internal carotid artery in the cavernous sinus 6 months following extensive cancer-clearing surgery. The lesion is marked with arrow heads and enhanced with contrast and T1 imaging (c).
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F3
Repeat magnetic resonance neuroimaging demonstrated a gadolinium-enhancing infiltrate in the right cavernous sinus surrounding and compressing the carotid artery (fig. 3).