Authors:
M. I. Garcia-Hidalgo, Y. Herrero, P. Calvo, E. Fandiño, I. Herrera, C. Cereceda; Toledo/ES
Methods and Materials
In this work, we discuss and illustrate a variety of radiologic and pathologic findings in 48 complicated HC from over 420 proved cases of hydatid disease seen at our institution over the past 5 years.
We search by the electronic information system of the hospital (PACS) all the cases of HC and selected those whith complicated HC, proved by surgery and pathology.
Most of the patients where diagnosed of hydatid cyst years before the complications, so we have previous studies to compare.
The reliability of the different imaging procedures depens of the cyst's locations in the body. Several tecniques were performed in this patients: X-ray, US, TC, MRI...
ü US: it was the first tecnicque used in most of the cases of suspected HC. US is particularly useful for detection of cystic membrane, hydatid sand and septa.
ü CT: is always performed because it has a high sensitivity. CT best demostrates cysts wall calcification and cysts infection, and is the modality of choice in peritoneal seeding, and osseous lesions.It is an important preoperative tool to determine vascular, biliary, or extrahepatic extension and therefore to determine resectability.
ü MRI: to confirm the hypothesis in uncertain cases. MRI is better than CT and US in muscular and neural involvement. It is the best imaging procedure to demonstrate a cystic component. It helps establish vascular or biliary tree involvement as well as extrahepatic extension.
ü Other: when necessary, interventional radiology was performed.