Accessorial spleen within the pancreatic tail as differential diagnosis to pancreatic tumour

Purpose: Accessorial spleens are often incidental findings in abdominal ultrasound. Because of their echogenicity and behavior in contrast enhanced ultrasound they can be misjudged as malignant tumours if found in an atypical location. Material and methods: During routine abdominal ultrasound a small round slightly hypoechoic lesion without halo was detected within the pancreatic tail of three persons (size 8 – 20 mm). EUS and CEUS have been performed as well as contrast enhanced MRI, which showed a hyperenhancing lesion without washout. Two lesions have been punctured, one lesion has been operated (pancreatic t…