Abstract

WEVER, Wallia et al. Adenocarcinoma pancreático, diagnóstico por punción con aguja fina guiada por ultrasonido endoscópico: Reporte preliminar. Gen [online]. 2010, vol.64, n.2, pp.100-103. ISSN 0016-3503.

Background: Pancreatic cancer is a serious disease with a median survival of 6 months after diagnosis; in many cases the diagnosis is delayed in relation to disease progression. Endoscopic Ultrasound has proven to be superior in detecting and staging pancreatic cancer in comparison with other imaging methods, but can not differentiate between malignant tumors and foci of chronic pancreatitis. The endoscopic ultrasound-guided aspiration cytology (EUS-FNA) is a useful and accurate method to assess and obtain the histological diagnosis of these lesions. Objective: To describe the cytological specimens obtained by endoscopic ultrasound-guided fine-needle aspiration in patients with suspected pancreatic lesion. Patients and methods: A descriptive, retrospective analysis of 33 patients during the period form June 2008 to May 2009. Results: Thirty-three patients went to perform a EUS-FNA, 31 patients underwent it and two others didn’t due to vessels interposition. Of these, 23 were pancreatic (15 solid lesions and 8 cystic lesions). The other eight FNA weren’t pancreatic lesions. Of the 15 patients with solid lesions of the pancreas, 11 were male (73%) and 4 were female (27%), with an average age of 58. Of the endoscopic ultrasound fi ndings of 10 patients (67%), the lesion was in the pancreatic head, with an average size between 3-5 cm. in diameter. As for the cytological fi ndings 11 (73%) patients were reported positive for malignancy, 3 patients negative for malignancy (27%), and one patient (7%) was reported as insufficient sample to make a defi nitive diagnosis. Conclusions: Cytological findings obtained by endoscopic ultrasound- guided fine-needle aspiration allow establishing the diagnosis of pancreatic adenocarcinoma in a high percentage of cases.

Keywords : endoscopic ultrasound; fine needle aspiration; pancreatic cancer.