Malignant seeding after fine-needle aspiration biopsy of the pancreas.

The authors report the case of a patient affected with carcinoma of the pancreas who underwent fine-needle aspiration biopsy under ultrasonic guidance. 2 months later, a peritoneal metastasis was found during laparotomy at the site of the previous biopsy. This is the third reported case in the literature of neoplastic dissemination after fine-needle biopsy, a traditionally safe diagnostic procedure.