In the Rx of hydatid cyst, PAIR is contraindicated in :
Lung cyst
Size > 5 cm
Not ammenable to Rx with albendazole
Multiple
Ans. is 'a' i.e. lung cyst The PAIR technique can be performed on liver, bone, and kidney cysts but should not be performed on lung and brain cysts. The cysts should be larger than 5 cm in diameter and type I or II according to the Gharbi ultrasound classification of liver cysts. PAIR can be performed on type III cysts as long as it is not a honeycomb cyst. Contraindications: Early pregnancy Cysts in lung, spine, brain & hea. Inaccessible cysts or cysts in risky location superficially located cysts (risk of spillage) Inactive or calcified lesions (type IV & type V according to Gharbi classification) Cysts communicating with the biliary tree (risk of sclerosing cholangitis from the scolecoidal agent) Cysts communicating with abdominal cavity, bronchi or urinary tract