Surgical Case Reports

Recent Treatment Options for Primary Colonic Leiomyosarcoma: A Case Report and a Review of the Literature

Akira Dejima, et al.

INTRODUCTION: Primary colonic leiomyosarcoma (LMS) accounts for only 0.12% of colonic malignancies. However, it is highly aggressive and associated with a poor prognosis. While radical surgical resection is considered the mainstay of treatment, the optimal surgical approach and the role of adjuvant chemotherapy remain unclear due to the small number of reported cases.

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Temporary Occlusion of Patent Ductus Arteriosus in Adult during Cardiac Surgery

Koki Ikemoto, et al.

INTRODUCTION: Patent ductus arteriosus in adults is rare, and is commonly recommended to be closed due to the possibility of cardiac complications. Patent ductus arteriosus closure has been often performed using endovascular devices or patches. However, the use of these closure devices in the presence of active infection is controversial, and patch closure procedure along with other cardiac surgery could make it more complicated. We report a case in which we successfully treated infective endocarditis with temporary occlusion of a patent ductus arteriosus in an 80-year-old woman.

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A Neonatal Case of Paraesophageal Mixed Hiatal Hernia Detected by “Coiled-Up Sign”

Yoshiki Yamaguchi, et al.

INTRODUCTION: Paraesophageal mixed hiatal hernia is a rare entity in neonates, that occasionally induces near-complete esophageal or gastric obstruction, and its diagnosis is sometimes difficult. Furthermore, its management remains controversial. This case provides new insights into the diagnosis and treatment strategies of neonatal paraesophageal mixed hiatal hernias.

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A Cystic Variant of Acinar Cell Carcinoma of the Pancreas with Repeated Bleeding from a Pseudoaneurysm: A Case Report

Kazue Morishima, et al.

INTRODUCTION: Acinar cell carcinomas are rare pancreatic neoplasms, accounting for approximately 1% of all exocrine pancreatic tumors. We describe a case of a cystic variant with intracystic hemorrhaging that was difficult to differentiate from a pseudocyst due to its morphology.

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A Case of Chronic Expanding Hematoma Presenting as a Subcutaneous Mass 24 Years after Konno Procedure

Yoshinobu Watabe, et al.

INTRODUCTION: Here, we report a very rare case of chronic expanding hematoma presenting as a gradually enlarging subcutaneous pulsatile mass detected 24 years after a Konno procedure.

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Surgical Management of a Rare Inguinal Intestinal-Cutaneous Fistula with an Incarcerated Richter’s Femoral Hernia: A Case Report

Saho Aso, et al.

INTRODUCTION: Richter’s hernia is a rare type of hernia in which only a part of the intestinal wall becomes entrapped, often leading to ischemia and necrosis. In rare cases, it can result in spontaneous formation of an intestinal-cutaneous fistula. Herein, we report a rare case of an intestinal-cutaneous fistula caused by incarceration of a Richter’s femoral hernia. Additionally, we present a brief literature review to highlight the diagnostic and therapeutic challenges associated with this condition.

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A Case of Sandwich Repair for Posterior Ventricular Septal Rupture through the Right Atrium

Shunsuke Nakata, et al.

INTRODUCTION: We encountered a case in whom ventricular septal rupture (VSR) repair was performed only through right atriotomy. A few cases of VSR repair using the right atrial approach have been reported in the literature. We report our experiences with focusing on the surgical technique.

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Successful Management of Obstructive Fibrinous Tracheal Pseudomembrane with a Coring Technique after Preoxygenation with a High-Flow Nasal Cannula: A Case Report

Takafumi Iguchi, et al.

INTRODUCTION: Obstructive fibrinous tracheal pseudomembrane, an extremely rare but potentially fatal complication of tracheal intubation, occurs several days after intubation and is characterized by central airway obstruction due to the formation of a fibrinous pseudomembrane. Early diagnosis is crucial. Treatment typically involves bronchoscopic removal of the pseudomembrane. Herein, we describe a patient whose pseudomembrane was successfully cored out using fiberoptic intubation after achieving preoxygenation with high-flow nasal cannula oxygen therapy.

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Proximal Jejunal Bypass with Sleeve Gastrectomy for Severe Obesity and Type 2 Diabetes: First Case Report in Japan

Taiki Nabekura, et al.

INTRODUCTION: Laparoscopic sleeve gastrectomy is the most common metabolic bariatric surgery performed in Japan. Nevertheless, concerns persist regarding its long-term efficacy, which is considered inferior to that of procedures involving gastrointestinal bypass. In response to these concerns, a modified approach known as the “sleeve plus procedure” has been introduced and is now covered by insurance for patients with severe obesity and type 2 diabetes mellitus (T2DM). We successfully performed proximal jejunal bypass with sleeve gastrectomy (PJB-SG), a variant of this approach, marking the first documented case of its kind in Japan. This report presents the clinical outcomes of this procedure along with a review of the relevant literature.

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Combined Posterior and Interlobar Approaches Enable S10 Segmentectomy for a Centrally Located Intrapulmonary Schwannoma Diagnosed by Endobronchial Ultrasound-Guided Transbronchial Needle Aspiration: Surgical Strategy and Technical Consideration

Tomonari Oki, et al.

INTRODUCTION: Intrapulmonary schwannoma is a rare benign tumor that often presents diagnostic and therapeutic challenges due to its nonspecific radiological findings and central location. Establishing a histological diagnosis before surgery is crucial to avoid unnecessary extensive lung resection.

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Improvement in Protein-Losing Gastroenteropathy Due to Gastric Polyposis by Laparoscopic Total Gastrectomy: A Case Report

Manatsu Mizuno, et al.

INTRODUCTION: Juvenile polyposis syndrome (JPS) is a rare disease characterized by multiple hamartomatous polyps in the gastrointestinal tract that may cause protein-losing gastroenteropathy. In such cases, symptoms such as hypoalbuminemia and anemia are often difficult to manage. Although clinical guidelines provide recommendations for diagnosis and management, standardized treatment strategies remain to be fully established.

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A Case of Primary Gastric Carcinosarcoma with Small Intestine Metastasis

Chikara Mashiba, et al.

INTRODUCTION: Primary gastric carcinosarcoma is extremely rare. Herein, we report a case of primary gastric carcinosarcoma with small intestinal intraluminal metastasis.

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