Case 29

Author: Cecilia Gimenez, M.D., Nora Morgenstern, M.D. North Shore – Long Island Jewish Health System, Department of Pathology, Lake Success, New York, USA

Reviewer: Dr Laura Tabatabai, Assistant Professor of Pathology, University of California San Francisco, USA

A 71 year old female presented with an irregular mass in the pancreatic body, extending beyond the pancreatic head. The 35 x 19 mm mass was hypoechoic and heterogeneous, with irregular outer margins. The patient underwent endoscopic ultrasound-guided fine needle aspiration (EUS-FNA) to sample the lesion. Five static images (1 DQ, 4PAP) of the direct smears are provided. 

case_29_image_1 Fig. 1 Diff Quick Stain x400
Fig 2 (Papanicolaou stain X200)
Fig 3 (Papanicolaou stain X400)
Fig 4 (Papanicolaou stain X1000)
Fig 5 (Papanicolaou stain X1000)

What is your diagnosis?