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From question on page 1435
Close contrast enhanced ultrasound (CEU) examination using Levovist (SH U 508A; Schering, Berlin, Germany) depicted papillary masses in the cystic area (fig 2). Cytology via nasobiliary tube demonstrated class IV findings (Papanicolau), suggesting adenocarcinoma. The patient hesitated about undergoing an operation as she was symptom free. …