PMC5449581_01
CT scan of the abdomen showing a calcified homogeneous mass measuring 3.7 cm between the pancreatic and gastric body (arrow).
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F1
Computed tomography (CT) of the abdomen with contrast revealed nephrolithiasis and a 29-mm mass between the pancreatic and gastric bodies (Figure 1).
EUS revealing a round, hypoechoic, calcified mass (arrow) with well-defined borders in the pancreatic body invading the lesser curvature of the muscularis propria. Several abnormal lymph nodes were also visualized in the peripancreatic region.
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F2
The procedure revealed a hypoechoic 30 x 32 mm mass with calcifications and well-defined borders (Figure 2).
Pathology of the mass showing a small follicle with a partially lymphocyte-depleted germinal center with hyaline deposits (arrow). Capillaries and small vessels are present in the germinal center within the interfollicular space, showing the unique lollipop configuration.
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F3
Pathological evaluation showed a lymph node with reactive lymphoid hyperplasia characterized by regressively transformed germinal centers with increased interfollicular vascularity, consistent with the hyaline vascular variant of Castleman disease (Figure 3).