• Faten Limaiem, Selma Bellil, Khadija Bellil, Inès Chelly, Amina Mekni, Moncef Khaldi, Slim Haouet, Moncef Zitouna, and Nidhameddine Kchir.
• Department of Pathology, La Rabta Hospital, Bab Saâdoun, 1007 Tunis, Tunisia. fatenlimaiem@yahoo.fr
• Clin Neurol Neurosurg. 2010 Jan 1; 112 (1): 23-8.

ObjectiveTo analyze epidemiological characteristics, clinical symptoms, radiological aspects, treatment and outcome of central nervous system hydatidosis and compare our results with those reported in literature.Patients And MethodsIn our retrospective study, we reviewed 39 cases of primary central nervous system hydatid cysts operated on in our hospital between 1998 and 2007.ResultsThere were 20 male and 19 female patients (sex-ratio M/F=1.05) between 2 and 68 years of age (mean=26.5 years). Thirteen of the patients were children (33.3%) with a mean age of 6.8 years and 26 were adults (66.7%) with a mean age of 36.3 years. The location of hydatid cysts was intracranial in 27 cases (69.2%) and spinal in 12 cases (30.8%). Headache and motor deficits were the predominant symptoms in patients with intracranial hydatidosis whereas back pain and spinal cord compression syndrome were the most frequent clinical presentations in patients with spinal hydatidosis. All patients underwent surgical resection of the cyst. Pathologic findings were consistent with hydatid cyst in all cases. During the follow-up period which ranged between 12 months and 5 years, 12 patients had recurrence (30.7%). Only one patient with intracranial hydatid cyst died postoperatively due to anaphylactic shock.ConclusionDespite all the advances in imaging techniques and therapeutic methods, central nervous system hydatidosis remains difficult to cure and patient outcomes are not satisfactory especially in case of spinal involvement due to the high incidence of recurrence.2009 Elsevier B.V. All rights reserved.

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