PMC4602638_01
Abdominal CT demonstrating a heterogenous mass (arrow) at the neck and body of the pancreas, adjacent to the descending portion of duodenum and the lesser curvature of the gastric body. The cystic part has internal division change (arrowhead) (A). The mass, cystic wall (arrowhead), and internal division (arrow) could be seen intensified on contrast-enhanced CT images compared with those on precontrast images (B and C). CT = computed tomography.
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F1
Abdominal CT showed a cystic-solid tumor (77.7 x 60.3 mm) with an irregular shape in the neck and body of the pancreas, adjacent to the descending portion of duodenum and the lesser curvature of the gastric body (Figure 1A). The tumoral cystic wall and its internal division could be seen intensified on contrast-enhanced CT images compared with those on precontrast images (Figure 1B and C).
Histological analysis revealed a soft tissue mass, consisting of lymphatic and blood vessels (hematoxylin and eosin, x100) (A). Positive immunostaining for CD31 (B) and CD34 (C) with positive staining for D2-40 (D) supported the diagnosis of pancreatic hemolymphangioma.
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F2
Macroscopically, the lesion was about 80 x 60 x 45 mm in diameter, and was a soft, polypoid mass with irregular lobulated margin, with lymphatic and blood vessels inside (Figure 2A). CD31 (Figure 2B) and CD34 (Figure 2C) were relatively positive in the cytoplasm of vascular endothelial cells. D2-40 revealed a relatively positive cytoplasm of lymphocyte cells (Figure 2D).