RESUMEN
Introduction: Adenosquamous carcinoma (ASC) is a rare subtype of the conventional adenocarcinoma of the bile duct. The clinico-pathological characteristics of this entity are poorly understood partly due to its rarity. Case Summary: A 67-year-old ASA II male presented with obstructive jaundice subsequently complicated by cholangitis. CT abdomen showed dilatation of the intra and extrahepatic biliary tree. Endoscopic retrograde cholangiopancreatography revealed a stricture with a mucosal growth at the ampulla of Vater. He had a pancreaticoduodenectomy and the distal common bile duct tumour identified in the specimen was on histology an adenosquamous carcinoma (ASC) of the extrahepatic bile duct. Discussion: ASCs are considered to have more aggressive tumour biology compared to adenocarcinomas. The presence of a squamous component at the invasive front relates to its poor prognosis. Surgery is the curative option, but with a high propensity for early recurrence and distant metastases. The scarcity of reports on the clinicopathological course of ASC have resulted in a lack of standardised care pathways. Conclusion: A better understanding of the clinicopathological characteristics, biological behaviour and disease progression of ASC will aid therapeutic options and prognostication.
RESUMEN
Epithelioid haemangiomas are rare benign vascular tumors that usually present as subcutaneous nodules in the head and neck area. Occasionally these tumors can arise in a peripheral artery. When it does so, it is often confused with an aneurysmal dilatation of the respective vessel. In these circumstances, surgical resection with vascular reconstruction is the preferred treatment option.