The<unk> (puncture-aspiration-injection-reaspiration; sometimes percutaneous aspiration-injection-reaspiration) procedure is a noninvasive treatment option to remove hydatid cysts.<unk> is considered an alternative treatment for cystic echinococcosis (hydatid disease) and is often indicated for patients who do not respond to surgery or benzimidazoles The<unk> procedure can be performed as follows: # ultrasound-guided percutaneous puncture of the cyst # aspiration of cystic fluid # injection of a scolicidal solution # reaspiration of the solution
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