Rare Case of Undifferentiated Embryonal Sarcoma of the Liver that Contained an Adenocarcinoma Component

Akira Watanabe, et al.

INTRODUCTION: Undifferentiated embryonal sarcoma (UES) of the liver (UESL) is a tumor that is rare in adults. UESL is composed of undifferentiated mesenchymal tumor cells, with characteristic normal bile duct cells found at the tumor periphery. We present a rare case of UESL containing an adenocarcinoma component in one part of the tumor.

Successful Use of Extracorporeal LVAD for Cardiogenic Shock with Aortic Valve Regurgitation as Bridge to Surgery

Takura Taguchi, et al.

INTRODUCTION: Intra-aortic balloon pumping (IABP), Impella, and veno-arterial extracorporeal membrane oxygenation (VA-ECMO) are common percutaneous devices used to manage hemodynamic instability in patients with cardiogenic shock. These devices play a critical role in providing circulatory support. However, they may fail to achieve sufficient left ventricular unloading in patients with aortic valve regurgitation (AR), potentially complicating treatment strategies. In such challenging cases, an extracorporeal left ventricular assist device (LVAD) may serve as an effective alternative solution.

Repair of Giant Parastomal Hernia with Loss of Domain by Total Colectomy: A Case Report

Tomoaki Kaneko, et al.

INTRODUCTION: Parastomal hernias with loss of domain are those in which it is difficult to return the hernia contents to the abdominal cavity and close the hernia orifice using standard mesh repair methods. We encountered a case in which abdominal wall closure was achieved safely by reducing the hernia content through bowel resection.

Small Bowel Intussusception due to Nasojejunal Tube Placement in Neonates: A Case Report

Kazuki Shirane, et al.

INTRODUCTION: Nasojejunal tube placement is a rare cause of small bowel intussusception. It is usually treated with tube removal, but a few cases require surgical reduction. We report a case of small bowel intussusception due to a nasojejunal tube shortly after surgery for ileal atresia, in which surgical reduction was required despite removal of the tube.

Primary Sternal Osteomyelitis with Acute Mediastinitis, Successfully Treated with Minimally Invasive Surgical Drainage

Iori Tsuji, et al.

INTRODUCTION: Primary sternal osteomyelitis (PSO) is a rare disease that occurs without any contiguous focus of infection, and there are few reports of acute mediastinitis due to PSO. In this report, we describe a case of PSO with acute mediastinitis successfully treated with a minimally invasive approach.

Abdominal Wall Abscess Caused by Small Intestinal Penetration That Was Difficult to Distinguish from a Malignant Tumor: A Case Report

Tomoya Kurose, et al.

INTRODUCTION: Fish bone ingestion is common but rarely causes complications such as abdominal wall abscesses, which can mimic malignancies such as sarcomas on imaging. Abscesses require drainage and antibiotics, while sarcomas need wide excision. Therefore, the differentiation between abscesses and sarcomas is important and often requires multidisciplinary involvement.

Surgical Resection of a Solitary Metachronous Retrocaval Lymph Node Metastasis above the Renal Vein from Rectal Cancer

Yui Sawa et al.

INTRODUCTION: Colorectal cancer (CRC) can metastasize to various sites, including the liver, lungs, ovaries, adrenal glands, and lymph nodes. Approximately 1%–2% of patients with CRC develop para-aortic lymph node metastases. Herein, we report a case of surgical resection of an isolated, metachronous, retrocaval lymph node recurrence of rectal cancer above the renal vein.

Usefulness of A Portal Vein Stent for Sinistral Portal Hypertension: A Case Report

Daisuke Takimoto et al.

INTRODUCTION: Portal vein (PV) and splenic vein (SV) stenosis are known complications of pancreatoduodenectomy (PD) and often lead to portal hypertension. PV stenosis extending to the SV confluence can result in sinistral portal hypertension (SPH), characterized by gastrointestinal varices and splenomegaly in the presence of normal liver function. There is no standardized treatment strategy for SPH following PD.

Anterolateral Thigh Flap Repair of Ruptured Incisional Hernia with Intractable Ascites after Laparoscopic Liver Resection: A Case Report

Tomohiro Yoshimura, et al.

INTRODUCTION: Incisional hernia is one of the postoperative complications after abdominal surgery including laparoscopic liver resection. There is often intractable ascites after liver resection, especially for patients with severe cirrhosis. In the present study, we report the case of ruptured incisional hernia due to the pressure from massive ascites, which was successfully repaired using an anterolateral thigh (ALT) flap.

Tumor Rupture in a Patient with Recurrent Hepatocellular Carcinoma Following Atezolizumab plus Bevacizumab: A Case Report

Kazuhiro Tada, et al.

INTRODUCTION: Atezolizumab plus bevacizumab combination therapy (atezo-bev) has been widely used worldwide as the first-line treatment for unresectable hepatocellular carcinoma (HCC). Intratumoral hemorrhage has been reported as a rare adverse event of atezo-bev. However, no previous cases of HCC rupture during atezo-bev have been reported. Herein, we demonstrate a case of tumor rupture in a patient with recurrent HCC following atezo-bev, who was successfully managed with transcatheter arterial embolization (TAE).

A Case of Inflammatory Myofibroblastic Tumor in the Abdominal Wall with Anaplastic Lymphoma Kinase and Whole Exome Sequencing Analysis

Yuya Takahata, et al.

INTRODUCTION: Inflammatory myofibroblastic tumors (IMTs) are rare mesenchymal neoplasms characterized by spindle cell proliferation and inflammatory infiltration, but with an unclear etiology. Although IMTs most commonly arise in the lungs, extrapulmonary cases have been documented at various anatomical sites. Approximately 50% of IMTs harbor anaplastic lymphoma kinase (ALK) rearrangements; however, the genetic landscape of ALK-negative cases remains largely unknown. We report a rapidly growing IMT in the right rectus abdominis muscle and present whole-exome sequencing (WES) findings that revealed novel genetic mutations beyond ALK rearrangements.

Distal Ileal Atresia in a Preterm Infant with Minor Omphalocele: A Case Report

Yan-Jun Wu, et al.

INTRODUCTION: Omphalocele is a congenital abdominal wall defect that is characterized by herniation of the abdominal viscera through the umbilical ring. Compared with gastroschisis, omphalocele is less frequently associated with ileal atresia. This report describes a preterm newborn with a minor omphalocele complicated by ileal atresia, a complication that may have been previously underestimated.