<prompt> True bout hydatid diseaseMC site is lungPre-op Albendazole followed by surgery is the treatment of choice20 saline is scolicidalPuncute, aspiration, injection reaspiration PAIR done in hepatic hydatids  <response>: .Indications for drug therapy - 4 days prior to intervention and to continue it for 1 month albendazole to 3 months mebendazole after the intervention. - Inoperable cysts. - Multiple or multiorgan cysts. -Recurrent hydatids. - Surgically unfit patients. - Cysts in lungs, bone, brain, eyes. Contraindications - Large cysts. - Honeycomb cysts with septae. - Infected cysts. Commonly cyst enlarges and is palpable per abdomen. It may cause complications like jaundice due to pressure over the biliary tree. Rupture into the peritoneal cavity causes an anaphylactic reaction which may cause life-threatening shock, requiring proper management with steroids. Rupture into biliary channels is commonest 60. Rupture into the bowel, pleural cavity can occur. Ref: SRB;s manual of surgery,3 rd ed, pg no 534 