Intracranial Hydatid Cyst: A Report of Three Cases in North-West India.

Human echinococcus is caused by tapeworm, Echinococcus granulosus , which forms larval cysts in the human tissue. Incidence in the cerebral form is only 1-2%. This localization can be associated with the involvement of other organs such as liver or lung or may be an isolated infestation of the brain or spinal column. Surgical removal of the intact and unruptured cyst is advised to prevent local recurrence that may require further surgery and long-term treatment with parasiticidal agents. We report three cases who presented with headache, vomiting, hemiparesis with decreased visual acuity, and convulsions. MRI showed a giant hydatid cyst in all three cases which was removed surgically and the patient was successfully discharged. Successful treatment of hydatid cyst requires preoperative diagnosis and meticulous surgical technique for complete excision of cyst without rupture under perioperative coverage of albendazole to avoid recurrence and anaphylaxis.