PMC5140862_01
The contrast enhanced abdominal computed tomography (CT) scan confirmed a 40 mm unilocular cystic lesion of the pancreatic tail, which showed enhancement similar to the adjacent spleen (arrows) (artery phase) (A), (portal phase) (B).
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A contrast enhanced abdominal CT scan confirmed the presence of a 40 mm unilocular cystic lesion of the pancreatic tail, which showed enhancement similar to the adjacent spleen (artery phase) (Fig. 1A), (portal phase) (Fig. 1B).
Endoscopic ultrasonography (EUS) showed a 40 mm unilocular cystic lesion within the pancreatic tail without an internal nodule.
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Endoscopic ultrasonography (EUS) showed a 40 mm unilocular cystic lesion within the pancreatic tail without an internal nodule (Fig. 2).
(A) Gross pathology showed a cystic lesion measuring 50x40 mm in size with a hyalinized fibrous capsule. The cyst was filled with serous fluid without internal bleeding, necrosis or calcifications. In the wall of the cyst, there were brown spleen-like organizations (arrow). On histopathology the cyst wall showed a thin multilayered squamous epithelium (arrow head), with small patches of splenic epithelium (arrow) [Hematoxylin and Eosin (H&E) staining, x4] (B), (H&E staining, x40) (C).
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In the wall of the cyst, there were brown spleen-like organizations (arrow) (Fig. 3A). On histopathology the cyst wall showed a thin multilayered squamous epithelium (arrow head), with small patches of splenic epithelium (arrow) [Hematoxylin and Eosin (H&E) staining, x4] (Fig. 3B), (HE staining, x40) (Fig. 3C).
PMC5140862_02
Contrast enhanced abdominal CT revealed a multilocular cystic lesion, measuring 35 mm in size, within the pancreatic tail. The solid component in the dorsal portion was revealed and showed enhancement similar to the spleen (arrows) (artery phase) (A), (portal phase) (B).
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The solid component in the dorsal portion was revealed and showed enhancement similar to the spleen (artery phase) (Fig. 4A), (portal phase) (Fig. 4B).
EUS showed a 35 mm multilocular cystic lesion within the pancreatic tail with an internal nodule.
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EUS showed a 35 mm multilocular cystic lesion within the pancreatic tail with an internal nodule (Fig. 5).
(A) The gross appearance showed a multi cystic lesion measuring 35 mm in size having the hyalinized fibrous capsule. The serosity was accumulated in the lumen. In the wall of the cyst, there were brown spleen-like organizations (arrow). On histopathology, the cyst wall showed a thin multilayered squamous epithelium (arrow head), with small patches of splenic epithelium (arrow) [Hematoxylin and Eosin (H&E) staining, x1] (B), (H&E staining, x40) (C).
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The serosity was accumulated in the lumen (Fig. 6A). The histopathological views were similar to case 1 (Fig. 6B and C) and the final diagnosis was an epidermoid cyst of an intrapancreatic accessory spleen.