Recurrent supraclavicular hydatid cyst.

Figure 1: A nuclear magnetic resonance revealed a 4 × 3-cm-sized multiloculated cyst. The lesion lay anteromedially to the trapezius muscle; inferiorly, it was in contact with the distal part of the left clavicle and scalene muscles that appeared lightly medially dislocated. The left external jugular vein was placed medially to the cyst, while the left subclavian artery and vein were caudally located at a distance of 10 mm. The cyst was hyperintense on T1-weighted black-blood images not suppressed in fat suppression sequences (transversal A and frontal B view, respectively). Thus, a recurrent hydatid disease was hypothesized. No albendazole therapy was administered after the previous operation.