CT in the diagnosis of isolated cysticercal infestation of extraocular muscle.
OBJECTIVE
To evaluate the use of computed tomography (CT) and ultrasound (US) to diagnose orbital cysticercosis, and present the diagnostic features.


METHODS
US and CT were used to evaluate patients with proptosis. Four patients were diagnosed as having orbital myocysticercosis and treated with oral albendazole and corticosteroid. Follow-up was undertaken with US and CT.


RESULTS
US features were confirmatory of myocysticercosis in two eyes where as CT was effective in diagnosing the condition in all four eyes. In two patients the medial rectus was involved, in one the superior rectus and, in the other, the inferior rectus muscles. Serial US and CT revealed complete resolution of the lesions in 3 months.


CONCLUSIONS
CT is useful method in diagnosing isolated orbital myocysticercosis. Our report demonstrated that ophthalmic signs and symptoms in the presence of proptosis, especially in an endemic region, should alert the clinician to the possibility of myocysticercosis. Though CT is superior, US can be used as a economical follow-up investigation.
Rauniyar
R K
RK
Department of Radio-diagnosis, B.P. Koirala Institute of Health Sciences, Dharan, Nepal. rauniyar99@yahoo.com
Thakur
S K D
SK
Panda
A
A
D000293:Adolescent; D000328:Adult; D002648:Child; D003551:Cysticercosis / Q000000981:diagnostic imaging*; D005094:Exophthalmos / Q000469:parasitology; D015822:Eye Infections, Parasitic / Q000000981:diagnostic imaging*; D005260:Female; D006801:Humans; D008297:Male; D009801:Oculomotor Muscles / Q000000981:diagnostic imaging* / Q000469:parasitology*; D009916:Orbital Diseases / Q000000981:diagnostic imaging*; D014057:Tomography, X-Ray Computed