A case report of successful percutaneous aspiration, injection, and re-aspiration (PAIR) technique for treatment of retrovesical pelvic hydatid cyst oleh Sameer Peer, MD, DM, Harmandeep Singh Jabbal, MS, Paramdeep Singh, MD, Preethi Sharon M, MBBS, Sravya Kakkera, MBBS, Priya Bhat, MD