Fibrous Extracellular Spheroids in an Endoscopic Ultrasound-Guided Pancreatic Fine Needle Aspiration Correlating to a Gyriform Pancreatic Endocrine Tumor with a Unique Cobblestone Pavement Growth Pattern

Figure 6

(a) Scattered loosely cohesive collections of epithelioid cells were noted in the direct smear backgrounds (Modified Giemsa stain, 400X). (b) These cells varied in shape from round to oval to plasmacytoid with finely granular chromatin and occasional minute nucleoli (Papanicolaou stain, 400X). (c) These cells appeared similar to the cells between the globules in the cell block but were dyscohesive (Hematoxylin & eosin stain, 400X).

(a)

(b)

(c)