Retrobulbar Cysticercosis Masquerading as Optic Nerve Glioma

Abstract

Extra ocular muscles are the most common site of involvement in orbital cysticercosis. We present a case of retrobulbar cysticercosis masquerading clinically as optic nerve glioma.

Ocular cysticercosis in north India- A case series

“…Cysticercosis of extraocular mucle usually presents as recurrent pain, redness, proptosis, ocular motility restriction, diplopia and ptosis. 8,9 In some casesoptic nerve compression by the cyst may cause decreased vision, disc edema and painful ocular motility. 10 Enlarging cyst may lead to axial proptosis, restricted ocular motility or simply may present as atypical optic neuritis.…”

“…Surgical removal of parasite is treatment of choice. 9 We also removed cyst surgically by viscoexpression. Cyst if ruptured can cause intense inflammatory reaction leading to plastic iridocyclitis 20 so careful removal of cyst is necessary.…”

Orbital Cisticercosis. A Challenger for Neurologists, Ophthalmologists, Neuro-Opthalmologists, and General Practitioners

“…The NCC of the optic nerve is extremely uncommon and until today no more than 10 patients have been well documented. [184][185][186][187][188][189][190][191][192][193][194][195][196][197][198][199][200] As we discussed in the previous chapter orbital cysticercosis as a presentation of disseminating cysticercosis has not been reported in the medical literature excepting one anecdotal case [194]. The first well documented patient presenting optic nerve cysticercosis was from India (1991).…”

“…[190,193,197,198] Ultrasonography can also help to determine the cause of optic neuritis due to the disorganization of the cyst with inflammation of the adjacent optic nerve. [187,191,193,195,[197][198][199][200][201] and these investigations are useful to confirm: response to the treatment and patient's compliance. Other investigation to support the diagnostic process is an enzymelinked immunosorbent assay test for cysticercosis.…”

Orbital Cysticercosis

“…6,26 Optic nerve :-Optic nerve compression by the cyst may cause decreased vision, disc edema and painful ocular motility. 27 Enlarging cyst may lead to axial proptosis, restricted ocular motility or simply may present as atypical optic neuritis. A cyst with hooklets on the optic disc has been reported in a case.…”