<prompt> What is PAIR technique for treatment of hydatid disease of liver -Punchure albendazole irigation regimenPuncture aspiration injection reaspiration techniquePraziquantel Albendazole injection reaspiration techniquePartial resection of affected organ liver  <response>: Ans. is b1 i.e., Puncture aspiration injection reaspirition PAIR technique WHOCDSCSRAPH2001.6o PAIR technique was proposed in 1986 by a Tunisian team.o In this, US guided needle aspiration of cyst is done followed by injection of scolicidal agent and reaspiration after 5 minutes.o Scolicidal agent used is 15 hypertonic saline or 95 alcohol.Indications-Non echoic lesion 5 cmCysts with daughter cysts andor detachment of membranesMultiple cystsInfected cystsPregnent women, children 3 yearsFailure to respond to chemotherapy alonePatients refusing for surgery or relapsing after surgeryContraindications -Non co operative patientinaccesible or risky location of cystCyst in spine, brain and.;or heartInactivecalcified lesion.Cysts communicating with biliary treeCysts opening into abdominal cavity, bronchi and urinary tract. 