Pancreatic schwannoma revealed contrast by contrast-enhanced ultrasonography: a case report
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- EGAMI Takatoshi
- Department of Gastroenterology, Iwata City Hospital
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- YAMADA Takanori
- Department of Gastroenterology, Iwata City Hospital
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- MATSUURA Tomoharu
- Department of Gastroenterology, Iwata City Hospital
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- TSUJI Atsushi
- Department of Gastroenterology, Iwata City Hospital
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- TAKAHASHI Yurimi
- Department of Gastroenterology, Iwata City Hospital
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- SASADA Yuzo
- Department of Gastroenterology, Iwata City Hospital
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- OCHIAI Hideto
- Department of Surgery, Iwata City Hospital
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- SUZUKI Shohachi
- Department of Surgery, Iwata City Hospital
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- SUZUKI Shioto
- Department of Diagnostic Pathology, Iwata City Hospital
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- SAIDA Yasuhiko
- Department of Gastroenterology, Iwata City Hospital
Bibliographic Information
- Other Title
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- 造影腹部超音波検査にて早期造影効果を示した膵頭部神経鞘腫の1例
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Abstract
<p>An asymptomatic pancreatic tumor was discovered in a 77-year-old man during a medical check-up. An abdominal computed tomography (CT) and magnetic resonance imaging (MRI) revealed a cystic mass containing a septum-like solid portion in the head of the pancreas, measuring 3.5cm in diameter. Additionally, abdominal contrast-enhanced ultrasonography (US) revealed increased flow in the solid portion and a tumor capsule in its early phase. We preoperatively diagnosed the lesion as a cystic-degenerated pancreatic neuroendocrine tumor or solid-pseudopapillary tumor and performed a pancreatoduodenectomy. Histopathological examination revealed a cystic pancreatic mass consisting of spindle-shaped cells, with S-100-positive and SMA-negative immunohistochemical stainings. This lesion was diagnosed as a pancreatic schwannoma from these findings.</p>
Journal
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- Nippon Shokakibyo Gakkai Zasshi
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Nippon Shokakibyo Gakkai Zasshi 114 (5), 881-888, 2017
The Japanese Society of Gastroenterology