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 CASE REPORT
CytoJournal 2012,  9:24

Endoscopic ultrasound-guided fine needle aspiration of the celiac ganglion: A diagnostic pitfall


1 Department of Pathology, University of Texas Medical branch, Galveston, Texas, USA
2 Department of Gastroenterology, MD Anderson Cancer Center, Houston, Texas, USA

Correspondence Address:
Ranjana S Nawgiri
Department of Pathology, University of Texas Medical branch, Galveston, Texas
USA
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/1742-6413.103025

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Endoscopic ultrasound guided fine-needle aspiration (EUS-FNA) is now widely used as a primary tool in the evaluation of lymphadenopathy in both the mediastinum and abdomen. A sympathetic ganglion may be mistaken for an enlarged lymph node on endoscopic ultrasound and are rarely sampled as such. A 51-year-old female presented with a history of weight loss, vomiting for several months, and right upper quadrant discomfort. Computed tomography (CT) and magnetic resonance imaging (MRI) scans showed a dilated common bile duct (CBD) with a possible periampullary mass, paraaortic, and pericelial lymph nodes suspicious for metastatic disease. Endosonography revealed a 17 mm oval hypoechoic structure with distinct margins in the para-aortic, celiac axis region suggestive of an enlarged lymph node. An EUS-FNA was done. Cytology revealed ganglion cells with large oval epithelial-like cells with round nuclei and prominent nucleoli consistent with a benign sympathetic ganglion. It is crucial for the cytopathologist to be aware of the fact that the endoscopist might have sampled a celiac ganglion instead of a celiac lymph node and be able to distinguish the cytological features of a benign sympathetic ganglion from a malignant process.






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