Publications by authors named "Yuichi Shibui"

Epithelioid sarcoma (ES) is a rare aggressive sarcoma that, unlike most soft-tissue sarcomas, shows a tendency toward local recurrence and lymph node metastasis. Novel antitumor agents are needed for ES patients. Forkhead box transcription factor 1 (FOXM1) is a member of the Forkhead transcription factor family and is associated with multiple oncogenic functions; FOXM1 is known to be overexpressed and correlated with pathogenesis in various malignancies.

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Hepatoblastoma (HB) is the most common malignant liver tumor in childhood. Although pre-operative cisplatin (CDDP)-based chemotherapy is often used in cases of HB, about 20% of HB patients exhibit resistance to CDDP. Forkhead box protein M1 (FOXM1) and chromo-domain-helicase-DNA-binding protein 4 (CHD4) have been associated with CDDP resistance in various tumors.

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Background: Sacrococcygeal teratomas (SCTs) are known to cause urological complications, but urethrovaginal (UV) fistula as a complication of SCT is rare. We herein report a case of SCT with UV fistula and hydrocolpos.

Case Presentation: A 1-day-old female neonate presented to our department with prominent swelling in the sacrococcygeal region.

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Severely neurologically impaired patients sometimes require anti-reflux surgery with preceding gastrostomy. We apply a traction technique for laparoscopic fundoplication (LF) without gastrostomy takedown (GTD) in such cases. We conducted a multicenter review to assess the feasibility of our approach.

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When a tumor and trauma coexist, the treatment strategy must be established while considering their interaction. We herein report a 5-month-old girl with Wilms tumor complicated by blunt renal trauma. She was involved in a traffic accident and had hemorrhagic shock due to renal bleeding.

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Background: Acetylcholinesterase (AChE) histochemistry has been widely performed for the histopathological diagnosis of Hirschsprung's disease (HD). However, we occasionally come across diagnostic difficulties. We conducted concurrent AChE histochemistry and hematoxylin and eosin (HE) staining to validate the ancillary value of this technique.

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Purpose: Malignant rhabdoid tumor (MRT) is a rare, highly aggressive sarcoma with an uncertain cell of origin. Despite the existing standard of intensive multimodal therapy, the prognosis of patients with MRT is very poor. Novel antitumor agents are needed for MRT patients.

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Background: Indocyanine green (ICG) fluorescence imaging is a promising tool for intraoperative decision-making. The aim of this study was to evaluate the utility of near-infrared fluorescence cholangiography (NIR-FCG) with ICG in primary surgery for biliary atresia (BA).

Methods: We performed NIR-FCG with ICG in 10 BA patients and observed the fluorescence of their hilar micro-bile ducts and hilar exudate in order to assess the appropriate level at which to dissect the hilar fibrous corn.

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Malignant small round cell tumors usually progress rapidly and show resistance to chemotherapy, and it is often difficult to make a definitive diagnosis based on their histological morphology. Glypican-3 (GPC3) is a highly tumor-specific antigen, and the overexpression of GPC3 was reported in many pediatric and adult malignancies. In the present study, we investigated the GPC3 expression in pediatric malignant small round cell tumors to assess its role in the differential diagnosis of the tumors.

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Background: Technology for detecting liver tumors and identifying the bile ducts using indocyanine green (ICG) has recently been developed. However, the usefulness and limitations of ICG navigation surgery for hepatoblastoma (HB) have not been fully clarified. We herein report our experiences with surgical navigation using ICG for in HB patients.

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A 69-year-old man, who had undergone pylorus-preserving pancreaticoduodenectomy (PD) (Imanaga procedure) for duodenum papilla cancer 13 years prior, had a history of repeated hospitalization due to cholangitis since the third year after surgery and liver abscess at the 10th year after surgery. Gastrointestinal series indicated no stenosis after the cholangiojejunostomy. However, reflux of contrast media into the bile duct and persistence of food residues were observed.

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