|Year : 1982 | Volume
| Issue : 5 | Page : 497-498
Hydatid cyst of the orbit
PK Agrawal, Jitendra Agarwal, Priti Kala
Department of Ophthalmology, KG. Medical College, Lucknow, India
P K Agrawal
K.G. Medical College,Lucknow (U.P.)
|How to cite this article:|
Agrawal P K, Agarwal J, Kala P. Hydatid cyst of the orbit. Indian J Ophthalmol 1982;30:497-8
Manifestations in the orbit of Tenia Echinococcus (hydatid cyst) is important on account of its varied presentations and not so uncommon occurence in the countries where the disease is prevalent.
A series of 25 cases of orbital hydatid cyst recorded with the orbital clinic are presented. The diagnosis was made after surgical exploration and confirmation by histopathological examination.
| Observations and discussion|| |
A total of 25 cases of hydatid cyst are included in this study. The youngest patient was of 2 years while the oldest was a woman of 50 years. This indicates that the hydatid cyst may occur at any age with high predilection in children, the maximum number of cases being in the younger age group below 30 years. Only 3 cases were above the age of 20 years.
In 5 cases below the age of 5 years, complaint of vision could not be asked as children were too young.
Presenting features of hydatid cyst were very variable. Proptosis was a constant feature in all 25 cases. Degree of proptosis also varied from case to case. Maximum proptosis in a female of 36 years was 9 mm. while minimum in a child was 3 mm.
Swelling of lid was the symptom in 7 cases. In 2 cases it was due to a cystic swelling under the upper lid, in one case under the lower lid and in remaining 4 cases, cause of lid swelling was considered as inflammatory response.
Pain was a rare feature of hydatid cyst in this study (4 cases). Diplopia was present in 3 cases. This is an indication of muscalar involvement by the cyst.
5 patients complained of diminution of vision.
The type of proptosis is varied and depends on the size of the cyst.
Ptosis was present in 7 cases. In 3 cases it was due to swelling under lid while in remaining cases, it was mechanical due to oedema of lid.
Restriction of movement was observed in 4 cases and in all these cases, h)datid cyst was attached to the muscle. One of these cases did not complain of diplopia due to poor vsiion.
Conjunctival chemosis was present in 2 cases and this was on inflammatory response of hydatid cyst due to leak. Earlier these were treated for inflammatory mass in orbit by corticosteroids and regressed but again presented with proptosis after sometime. The diagnosis was only confirmed by orbitotomy.
Mass could be felt in the orbit in 13 cases and in 7 of these it had a cystic feeling. In one case mass was visible at the lateral canthus while in another it was visible through conjunctiva of lower fornix.
Vision was affected in 8 cases. In 2 cases it was reduced to finger counting and in 3 cases was 6/60 to 6/36. In 4 cases there was papillodema which was responsible for loss of vision.
Eosinophilia is of no significance as it was present in only 7 cases in mild degree. Moreover, worm infestation may cause eosinophilia and is common in this country.
X-ray of orbit was normal in 20 cases and only in 5 cases, there was generalised enlargement of orbit due to large size of the orbit.
Casoni's test was done in 21 cases,. In 4 cases it was not done as clinically there was no suspicion of hydatid cyst. Test was only positive in 5 cases. The test was only positive in those cases where the condition presented as inflammatory symptoms eg. pain, redness, chemosis and swelling of lids.