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A case of solid-pseudopapillary neoplasm, focusing on contrast-enhanced endoscopic ultrasonography

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Abstract

We used contrast-enhanced endoscopic ultrasonography (CE-EUS) to diagnose a case of solid-pseudopapillary neoplasm (SPN) in an adult man. A 58-year-old man was referred to our hospital because of a pancreatic mass found by positron emission tomography (PET) using 18F-fluorodeoxyglucose (FDG) during a medical checkup in 2009. Trans-abdominal ultrasonography revealed a 24-mm hypoechoic mass at the pancreatic tail with calcification inside. Multiphasic computed tomography (CT) showed a solid mass with delayed enhancement. EUS revealed a hypoechoic mass without lateral shadowing, and neither a septum nor cystic component was detected. CE-EUS using Sonazoid® showed a hypovascular mass compared with the surrounding pancreatic parenchyma, and the inside of the mass was enhanced like an alveolus nest, suggesting pseudopapillary change. Diagnosis of a solid-pseudopapillary neoplasm and a concomitant small neuroendocrine tumor was made by distal pancreatectomy.

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Authors and Affiliations

  1. Department of Gastroenterology, Nagoya University Graduate School of Medicine, Nagoya, Japan

    Takuya Ishikawa, Akihiro Itoh, Hiroki Kawashima, Eizaburo Ohno, Hiroshi Matsubara, Masanao Nakamura, Naoki Ohmiya & Hidemi Goto

  2. Department of Endoscopy, Nagoya University Hospital, 65 Tsuruma, Showa, Nagoya, 466-8550, Japan

    Ryoji Miyahara & Yoshiki Hirooka

Authors
  1. Takuya Ishikawa
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  2. Akihiro Itoh
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  3. Hiroki Kawashima
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  4. Eizaburo Ohno
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  5. Hiroshi Matsubara
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  6. Masanao Nakamura
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  7. Ryoji Miyahara
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  8. Naoki Ohmiya
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  9. Hidemi Goto
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  10. Yoshiki Hirooka
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Corresponding author

Correspondence to Yoshiki Hirooka.

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Ishikawa, T., Itoh, A., Kawashima, H. et al. A case of solid-pseudopapillary neoplasm, focusing on contrast-enhanced endoscopic ultrasonography. J Med Ultrasonics 38, 209–216 (2011). https://doi.org/10.1007/s10396-011-0313-z

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  • DOI: https://doi.org/10.1007/s10396-011-0313-z

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