Ultrasound-B scan: an indispensable tool for diagnosing ocular cysticercosis

Description

Ocular cysticercosis is still an important parasitic infection in low/middle-income countries, as its diagnosis requires meticulous ocular examination followed by skilful usage of point-focused ultrasound imaging for confirmation of the diagnosis. A 26-year-old woman presented with a history of recurrent redness in the left eye, which was not responsive to topical medications. Clinical examination showed congestion in the inferior conjunctiva with the rest of the anterior and posterior segments being within normal limits. Subsequent ultrasound examination of the extraocular muscle showed a large cyst inferior to the rectus muscle with a high amplitude localised spike corresponding to scolex (figure 1A). In a second scenario, a middle-aged female patient presented with painless diminution of vision in the left eye; because of the hazy media, a posterior segment ultrasonography was performed which showed a well-defined cystic cavity in the mid-vitreous with a high amplitude echo suggesting a cysticercosis. (figure 1B)...

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