Laparoscopic management of a rare tumor at an uncommon location: Porta hepatis mesothelial cyst

Abstract

Mesothelial cysts are rare intra-abdominal fluid-filled cysts that are detected commonly in females on radiological evaluation. Porta hepatis is an uncommon site for these lesions. A 40-year-old female presented with abdominal pain of 2 months duration. Her computed tomography abdomen showed a cystic lesion at the porta hepatis in close proximity to hepatic artery and magnetic resonance imaging showed normal bile duct with a separate cystic lesion at the porta hepatis. Since there were no features of malignancy, a laparoscopic approach was used for cyst excision. With careful dissection, cyst could be excised laparoscopically leaving a small rim of tissue adjacent to hepatic artery. Histological examination showed calretinin positive cells lining the cyst consistent with the mesothelial cyst. At 6 months of follow-up, patient is doing well without signs of recurrence.

Keywords

• Laparoscopy
• mesothelial cyst
• porta hepatis