Surgical management and recurrence analysis in primary extrahepatic-extrapulmonary hydatid cysts: A single-center experience of 20 cases

Figure 1 Axial contrast-enhanced computed tomography images demonstrating rare extrahepatic and extrapulmonary hydatid cyst localizations. A: A well-defined hypodense cystic lesion located within the right adrenal gland (arrow), without evidence of adjacent organ invasion; B: A round, homogeneous cystic mass in the presacral/retrovesical pelvic compartment (arrow), producing mild mass effect on surrounding structures; C: A well-circumscribed unilocular cystic lesion adjacent to the right iliopsoas muscle (arrow), without calcification or daughter cyst formation.