case_images: PMC11697483_01
case_images: PMC11697483_02
case_images: The timeline of key events during patient care
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case_images: PMC11697483_02_12957_2024_3646_Fig1_HTML.jpg
case_images: Fig1
case_images: Abdominal Computed Tomography (CT) revealed a pancreatic mass, and she was subsequently transferred to our hospital for further treatment (Fig. 1).
case_images: Preoperative abdominal CT. A: Abdominal x-ray plain films; B: Non-contrast enhanced CT; C: Arterial phase of contrast-enhanced CT; D: Venous phase of contrast-enhanced CT; Note: The tumor indicated by the arrow in the figure is a pancreatic schwannoma. It is a low-density solid mass under non-contrast enhanced CT, and heterogeneous enhancement can be seen under contrast-enhanced CT
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case_images: Fig2
case_images: Abdominal CT revealed a 64 mm x 54 mm mass in the body of the pancreas, with clear borders and no enhancement on the slice, and mild dilation of the main pancreatic duct was observed, but no evidence of metastasis was found (Fig. 2).
case_images: Postoperative CT images after Roux-en-Y Pancreaticojejunostomy. A: Arterial phase of contrast-enhanced CT; B: Venous phase of contrast-enhanced CT; C: Arterial phase of contrast-enhanced CT; D: Venous phase of contrast-enhanced CT; Note: The arrows in pictures A and B indicate the residual pancreatic head; The arrow in picture C indicates the location of the anastomosis of pancreaticojejunostomy; The arrow in picture D indicates the residual pancreatic tail
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case_images: Fig3
case_images: Fig. 3, the direction indicated by the arrows in pictures A and B shows the pancreatic remnant, while the arrows in pictures C and D indicate the location of Roux-en-Y pancreaticojejunostomy, with the pancreatic stent clearly visible at the central part of the pancreas. Frozen section analysis was performed on the mass that was completely resected.
case_images: Pathological photograph. A: Resected pancreatic schwannoma; B: H&E x100, a large amount of foamy histiocytes were deposited in the interstitium; C: H&E x200, the epithelioid tumor cells were arranged in strips and sheets, and the stroma was collagenous; D: H&E x200, lymphocyte aggregation at the edge of the tumor
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case_images: Fig4
case_images: The cells were arranged in a palisading pattern in some areas, and the other were arranged in a rope-like or fascicular pattern, or in a pseudo-glandular or sheet-like arrangement (Fig. 4).
case_images: Immunohistochemical staining picture. A: S100 (+) x200; B: S100 (+) x400; C: NSE (+) x200; D: NSE (+) x400
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case_images: Fig5
case_images: Immunohistochemical results (Fig. 5): S100 (+), P53 (+), CK5/6 (-), CD56 (+), CD68 (+), Ki - 67 hot zone (< 5% +), NSE (+).