Orbital dirofilariasis: MR findings.
Dirofilariasis is a helminthic zoonosis occurring in many parts of the world. We report the findings in a 61-year-old woman who had painless right exophthalmos caused by orbital dirofilariasis. A vivid worm was embedded inside an inflammatory nodule in the right orbit. On T1-weighted MR images, the parasite was visible as a discrete, low-intensity, tubular signal in the center of the nodule surrounded by contrast-enhancing inflammatory tissue.
Groell
R
R
Department of Radiology, University Hospital Graz, Austria.
Ranner
G
G
Uggowitzer
M M
MM
Braun
H
H
D004184:Dirofilariasis / Q000150:complications / Q000175:diagnosis*; D005094:Exophthalmos / Q000209:etiology; D005260:Female; D006801:Humans; D008279:Magnetic Resonance Imaging; D008875:Middle Aged; D009916:Orbital Diseases / Q000175:diagnosis*