Slow-Growing Pancreatic Smooth Muscle Tumor Treated with Partial Pancreatectomy: A Case Report

Yoshiki Murase, et al.

INTRODUCTION: Smooth muscle tumors, such as leiomyoma or leiomyosarcoma, are mesenchymal tumors that originate from smooth muscle cells. Smooth muscle tumors in the abdominal cavity often originate from the uterus, gastrointestinal wall, and inferior vena cava, but rarely originate from the pancreas. We present a rare case of a pancreatic leiomyoma that was successfully treated via partial pancreatectomy.

Mesenteric Vessel-Preserving Laparoscopic Surgery for Pediatric Unicentric Castleman Disease in the Transverse Mesocolon

Takashi Kobayashi et al.

Abstract INTRODUCTION: Castleman’s disease is a rare lymphoproliferative disorder. Unicentric Castleman disease (UCD) is usually benign and can be treated by complete resection. We herein report a pediatric case of UCD that occurred in the transverse mesocolon and was successfully treated with a laparoscopic approach.

Right Pneumonectomy for Right Lower Lobe Lung Cancer with Partial Anomalous Pulmonary Venous Connection in Another Ipsilateral Lobe: A Case Report

Ryosuke Kaku, et al.

INTRODUCTION: Partial anomalous pulmonary venous connections (PAPVC) are rare. We report a case of right pneumonectomy for right lower lobe lung cancer, wherein a PAPVC was detected in the right upper lobe vein before surgery.

In Situ Hypothermic Perfusion in Hepatectomy for Advanced Hepatoblastoma: A Case Report and Literature Review

Toshiharu Matsuura, et al.

INTRODUCTION: Hepatoblastoma with tumor thrombi involving three hepatic veins or extending into the inferior vena cava (IVC) toward the right atrium is mostly considered unresectable. In the current era of liver transplantation for unresectable hepatoblastoma with stable outcomes, it is challenging to choose extreme hepatectomy with hypothermic perfusion under total hepatic vascular exclusion. We herein report a successful case of extreme liver resection with in situ hypothermic perfusion.

A Case of Successful Conversion Surgery for BRCA-Mutated Pancreatic Body-Tail Cancer with Multiple Liver Metastases Subsequent to Positive Response to Olaparib Maintenance Therapy after Modified FOLFIRINOX

Kenta Yagi et al.

INTRODUCTION: With advancements in multidisciplinary treatments such as chemotherapy and radiation therapy, there have been an increasing number of recent reports regarding surgical interventions for unresectable pancreatic ductal adenocarcinoma with metastasis (UR-M PDAC), known as “conversion surgery”. Olaparib, which is one of the treatment options, has been approved as a maintenance treatment in patients with UR-M PDAC and germline BRCA mutations who achieve disease control after a platinum-based regimen such as modified FOLFIRINOX (mFFX).

Unilateral Vocal Cord Paralysis Caused by Cervical Esophageal Duplication Cyst Containing a Foreign Body: A Case Report

Yoshiko Usui, et al.

INTRODUCTION: Cervical esophageal duplication is a rare congenital anomaly that occasionally causes compressive symptoms. Herein, we present a unique case of unilateral vocal cord paralysis caused by a cervical esophageal duplication cyst with a granuloma containing a foreign body.

Late-Onset Para-Aortic Lymph Node Recurrence 11 Years after Resection of Pancreatic Cancer: Histological Reassessment Revealed Neuroendocrine Differentiation Amenable to Surgical Resection

Yohei Tabe, et al.

INTRODUCTION: While para-aortic lymph node recurrence may occur after curative resection for pancreatic ductal adenocarcinoma (PDAC), it is rarely seen as a late recurrence and is usually treated with systemic chemotherapy. In contrast, recurrence of pancreatic neuroendocrine neoplasms (Pan-NENs) can occur more than a decade after surgery and may be amenable to surgical resection. Although immunohistochemical techniques have significantly enhanced the diagnostic distinction between PDAC and Pan-NEN, challenges remain, particularly in older cases.

Bronchopleural Fistula Following Lobectomy after Prior Thoracic Endovascular Aortic Repair: A Case Report

Kohei Abe, et al.

INTRODUCTION: Bronchopleural fistula (BPF) is a severe complication of lung cancer surgery that is often associated with impaired blood supply and poor healing. Thoracic aortic aneurysms (TAA) frequently coexist with lung cancer owing to their shared risk factors, and thoracic endovascular aortic repair (TEVAR) may further increase the risk of BPF by compromising bronchial artery blood flow.

Innovative Approach to Pediatric Peutz–Jeghers Syndrome: Simultaneously Performing Laparoscopic Reduction of Polyp-Induced Intussusception and Polypectomy with Double-Balloon Endoscopy

Naoko Mise, et al.

INTRODUCTION: In patients with Peutz–Jeghers syndrome (PJS), repeated laparotomy and bowel resection can lead to short bowel syndrome and adhesions. Minimizing surgical invasiveness while effectively managing intussusception caused by polyps is therefore essential. We present a pediatric case of recurrent intussusception due to a jejunal polyp near the ligament of Treitz, successfully treated with a hybrid approach combining laparoscopic reduction and double-balloon enteroscopy (DBE)–assisted polypectomy.

Pulmonary Artery Intimal Sarcoma: Diagnostic and Surgical Strategy from a Rare Case

Takuro Hieda et al.

INTRODUCTION: Pulmonary artery intimal sarcoma (PAIS) is a rare tumor, and the prognosis is extremely poor. Radical surgery for PAIS is the best option for prolonging survival. Thus, PAIS should be diagnosed as soon as possible, and radical surgery should be performed rapidly. However, it is difficult to differentiate PAIS from pulmonary embolism in the early stage. We report the case of a patient who was diagnosed with PAIS by endovascular catheter biopsy in the early period and who underwent left pneumonectomy, accompanied by resection of the main and right pulmonary arteries and right pulmonary artery reconstruction via median sternotomy for radical surgery.

A Case Suggestive of an Aorto-Esophageal Fistula Caused by Pseudoaneurysm at the Distal Anastomosis of an Aortic Graft: Long-Term Survival without Aortic Reconstruction

Kazuki Noda et al.

INTRODUCTION: Aorto-esophageal fistula (AEF) is a relatively rare and life-threatening condition. Although various treatment strategies have been developed, including conventional surgical repair, long-term survival remains uncommon. This report presents a case of AEF successfully treated without aortic reconstruction, resulting in long-term survival.

Pathological Complete Response in Locally Advanced ALK Fusion Gene–Positive Lung Adenocarcinoma following Salvage Surgery: A Case Report and Literature Review

Kazuki Ohta et al.

INTRODUCTION: Alectinib, a 2nd-generation anaplastic lymphoma kinase–tyrosine kinase inhibitor (ALK-TKI), is an established 1st-line therapy for advanced ALK fusion gene–positive non–small cell lung cancer (NSCLC). However, the role of salvage surgery following alectinib for locally advanced disease remains uncertain.