Presenter: Bahareh Ghane BS | Tehran University of Medical Sciences Background: Hydatid cysts can occur in any organ or soft tissue; however, the most common sites are liver (60% -70%), lungs (30%), and rarely other organs such as spleen, bone, thyroid, pancreas, breast. The patient was a 23-year-old man presenting with abdominal pain, early satiety feeling mass LUQ from 2 months ago. On physic...