Abstract
Biliary cystadenoma – A rare cystic neoplasm of liver
Highlights
IntroductionBiliary cyst adenoma (BCA) is a rare, slow growing, benign cystic lesion of liver and account for less than 5% of solitary cystic lesions of liver [1]
Biliary cyst adenoma (BCA) is a benign tumour, the main concern is its high potential for malignant transformation, tendency to recur especially in cases with incomplete excision and difficulty to differentiate cyst adenoma and cyst adenocarcinoma preoperatively
BCAs are classified into three groups based on the presence dense cellular spindle cell stroma known as mesenchymal stroma into: 1. Hepatobiliary cystadenoma with mesenchymal stroma (HCMS)
Summary
Biliary cyst adenoma (BCA) is a rare, slow growing, benign cystic lesion of liver and account for less than 5% of solitary cystic lesions of liver [1]. With variability in clinical presentation and imaging data, histopathologic evaluation of the surgically excised cyst forms the gold standard for diagnosis of this rare tumour [2,3]. Initial ultrasound examination (USG) of the abdomen revealed multiloculated cystic lesion of size 15 × 10 × 8 cm containing 100 cc clear fluid in the epigastric area in relation to left lobe of liver and gallbladder fossa. MRI scan of abdomen revealed similar findings with evidence of possible communication of the lesion with left hepatic duct. On microscopic examination the H and E sections revealed variable sized cysts lined by single layer of cuboidal to columnar mucin secreting epithelium resembling biliary epithelium. Photomicrograph showing cyst lined by cuboidal epithelium resembling biliary epithelium with surrounding stroma.
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