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April 3, 2024
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May 1, 2024

Distal pancreatic stent migration: Could POCUS assist in identifying perforation in primary care?
[September 2023]


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Distal pancreatic stent migration: Could POCUS assist in identifying perforation in primary care?

Authors: Tommaso Barnini, Camilla Dalprà, Daria Paladino
– AUSL TOSCANA CENTRO – Sesto Fiorentino, Italy

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Figure 1.

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Figure 2.

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Figure 3

1Clinical History
Here we present the case of a 72-year-old patient with displacement of a pancreatic stent, placed following duodenocephalopancreatectomy for a neuroendocrine tumor of the head performed 6 years prior.
2Image findings
On ultrasound imaging performed with Alpinion eCube i7 using a linear probe of 5-12 MHz, no masses or signs of disease recurrence were found. At the site of pain, dilation of a jejunal loop (Figures 1,2) with the presence of a hyperechoic, linear image, approximately 120x4 mm in size (Figures 2,3), consistent with dislocated pancreatic stent, was observed. The patient was aware of the stent displacement, found in a previous abdominal CT scan. There were no findings of free abdominal air, free fluid, and regular peristalsis was present (Video 1).
Distal pancreaticojejunal anastomotic stent migration
The patient was treated with oral laxatives and scheduled for a follow-up visit in one week. Nevertheless, the patient was provided with a safety net, instructing her to contact the clinic in case of worsening pain or fever.

The patient was subsequently seen one week later with resolution of abdominal pain, and the point-of-care ultrasound demonstrated reduction of jejunal distension and persistence of the stent.
5Teaching Points
Ultrasound of the small intestine can be easily utilized even in the primary care setting to identify causes of constipation or suspected intestinal perforation.

Identification of indirect signs of abdominal perforation on ultrasound (free air - intestinal a lines, free fluid, reduced or absent peristalsis)
1.) Re GL, La MantiaF, PiconeD, et al. Small bowel perforations: what the radiologist needs to know. Semin Ultrasound. 2016; 37(1): 23-30.

2.) Ortega PM, Zozaya-Larequi G, Arredondo J, et al. Distal migration of a transanastomotic pancreatic stent resulting in bowel perforation 19 years after pancreatoduodenectomy: report of a case. Surg Today 2015; 45(3): 374-377.

3.) Bao Li, ChenZ-T, Huang J-C,et al. Small bowel perforation caused by pancreaticojejunal anastomotic stent migration after pancreaticoduodenectomy: A case report. Medicine 2020; 99(30): e21120.

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