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Isolated cerebral hydatid cysts: a comparative study of two different types of presentations
T Patankar1, A Krishnan, S Prasad
1Dept. of Radiology, KEM Hospital, Mumbai, India.
Objectives:
To demonstrate the existence of two imaging patterns of cerebral hydatidosis and discuss its clinical importance.
Material And Methods:
A retrospective review of six cases of cerebral hydatidosis using various imaging techniques including CT, MRI, angiography and cystogram.
Results:
Clinically the most common findings included papilloedema, headache and vomiting. Two of the cases reported recurrence of symptoms and were reoperated. The first 4 cases presented the classical signs of unilocular well defined cysts while the last two cases had multilocular, often polygonal cysts with perifocal edema, calcification and membrane detachment.
Conclusion:
Two radiologically and pathologically distinct subtypes of hydatidosis exist. Division into groups may assist decision over treatment protocol.