Purpose: To report bioultrasonic findings in Listeria monocytogenes-induced endophthalmitis (LMIE) that have not been described previously.
Design: Interventional case report.
Methods: To rule out intraocular tumor, ultrasound biomicroscopy was performed in a patient referred for a 2-day history of uveitis with elevated intraocular pressure, dark hypopyon, and pigment dispersion in the anterior chamber.
Results: Ultrasound biomicroscopy examination showed increased iris thickness with rarefaction of tissue and irregular echogenicity as well as iris pigment epithelial detachment. A small choroidal detachment was also detected. The anterior chamber and vitreous sample confirmed the LMIE diagnosis.
Conclusions: The detection of both pigment epithelial detachment and changes in the iris tissue could explain why black hypopyon frequently develops in LMIE with significant pigment dispersion in some cases.