Heart, Lung and Circulation
Image| Volume 18, ISSUE 5, P363-364, October 2009

Pancoast Hydatid Cyst Leading to Horner Syndrome

Thoracic Hydatidosis
      A 27-year-old male patient presented to the thoracic surgery clinic with intermittant fluctuating mass and pain at the right side of the neck. Physical examination revealed a mobile mass at the right supra-clavicular region and Horner's syndrome. Chest X-ray showed an unusual opacity at the apex of the right lung (Supplementary data, Fig. S1). Ultrasonography indicated erosion of the first rib and a cystic lesion including multiple septations (Supplementary data, Fig. S2). Pathology was further investigated with computed tomography (CT) revealing 13 cm × 8 cm × 7 cm lobulated cystic lesion (Supplementary data, Fig. S3) and magnetic resonance imaging (MRI) indicating a lobulated mass localised to the chest wall at the thoracic inlet protruding from the chest to the neck (Supplementary data, Fig. S4; Fig. 1). Surgical treatment was organised with cautions according to the most probable preoperative diagnosis of hydatid cyst disease. Removal of the lesion through neck incision or thoracotomy was discussed and the decision was through thoracic approach. Additional diagnostic measures such as biopsy or serological tests were not fashioned. Through right thoracotomy, the cyst was sterilised and evacuated (Supplementary data, Fig. S5; Fig. 2). The wall of the cyst was partially excised (Supplementary data, Fig. S6), and the cavity was then plicated and closed.
      Figure thumbnail gr1
      Figure 1Magnetic resonance imaging indicating a lobulated mass localised to the chest wall at the thoracic inlet protruding from the chest to the neck.
      Figure thumbnail gr2
      Figure 2(a) Evacuation material indicated hydatidosis and (b) a multiplying hydatid cyst.
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