Late Open Conversion with Graft Replacement after Endovascular Aortic Repair along with Removal of a Giant Ovarian Tumor: A Case Report

Takuma Mikami, et al.

INTRODUCTION: There are many reports of late open conversion after endovascular aortic repair (EVAR). Herein, we report the case of an octogenarian patient with a giant ovarian tumor who underwent ovarian tumor resection and open conversion with graft replacement simultaneously via laparotomy.

A Case of Laparoscopic Distal Gastrectomy after Failure of Laparoscopic Gastric Antral Devascularization for Gastric Antral Vascular Ectasia

Kozue Matsuishi, et al.

INTRODUCTION: Gastric antral vascular ectasia (GAVE) is a condition characterized by clusters of dilated capillaries in the gastric antrum, leading to gastrointestinal bleeding. Although massive hemorrhage is rare, some cases present with recurrent minor bleeding, which can make endoscopic hemostasis challenging. Here, we report a case of GAVE that was refractory to argon plasma coagulation (APC) and required surgical intervention.

Surgical Management of a Giant Mediastinal Schwannoma Associated with Neurofibromatosis Type 1: A Case Report

Shin-nosuke Watanabe, et al.

INTRODUCTION: Neurogenic tumors commonly develop in the posterior mediastinum in both pediatric and adult patients. In patients with neurofibromatosis type 1, distinguishing benign schwannomas from malignant peripheral nerve sheath tumors is challenging. In this study, we aimed to present the surgical management of a giant schwannoma that required differentiation from a malignant peripheral nerve sheath tumor.

Three Cases of Surgical Site Infection-Related Wound Dehiscence Treated with Negative Pressure Wound Therapy with Instillation and Dwell Time and Dialkylcarbamoyl Chloride

Makoto Shinohara, et al.

INTRODUCTION: Surgical site infection (SSI)-associated wound dehiscence offers management challenges, often requiring frequent and prolonged wound care to achieve healing. Dehiscence may result in evisceration, requiring careful attention to infection management and organ protection, leading to extended hospitalization, poor cosmesis, increased costs, and higher risks of incisional hernias, all of which reduce patient satisfaction. Herein, we outline 3 cases in which the combination of negative pressure wound therapy with instillation and dwell time (NPWTi-d) and deep cavity wound dressing and protective agent (Sorbact) enabled safe and early wound healing.

Bronchogenic Cyst with Degeneration of the Adjacent Membranous Portion of the Trachea: A Case Report

Takamitsu Hayakawa et al.

INTRODUCTION: Bronchogenic cysts are congenital, benign cystic lesions that develop in the mediastinum. Many patients are asymptomatic, and conservative observation is often chosen in clinical practice. However, delayed surgical resection following cyst enlargement and compression of the adjacent membranous portion of the trachea can result in perioperative challenges.

Delayed Enterocutaneous Fistula Following Incisional Hernia Repair Using the Plug-and-Patch Technique: A Report of a Surgically Managed Case

Kentaro Goto, et al.

INTRODUCTION: For inguinal hernia repair, the plug-and-patch technique is commonly employed. Although abdominal wall hernias are occasionally treated with plugs, their safety remains uncertain. Herein, we report a surgical case of enterocutaneous fistula occurring 18 years after incisional hernia repair using the plug-and-patch technique.

Curatively Resected Mesenteric Lymph Node Recurrence of Ewing Sarcoma

Ayaka Tachikawa, et al.

INTRODUCTION: We report herein a rare case of Ewing sarcoma that metastasized to the mesenteric lymph nodes.

Nipple-Sparing Mastectomy and Immediate Breast Reconstruction with da Vinci SP Surgical System: The First Case in Japan

Yuko Kijima, et al.

INTRODUCTION: Nipple-sparing mastectomy (NSM) has been increasingly used therapeutically for breast cancer patients in whom the nipple-areolar complex is not involved, being associated with better esthetic results and QOL than skin-sparing mastectomy. Robotic nipple-sparing mastectomies (R-NSM) using da Vinci SP surgical system (Intuitive Surgical, Sunnyvale, CA, USA) with immediate breast reconstruction (IBR) has been reported as a suitable surgical treatment for early breast cancers. We present a patient who underwent R-NSM and IBR, with excellent results. To our knowledge, this is the 1st reported case of R-NSM and IBR using the da Vinci SP surgical system in Japan.

Thymic Amyloidosis Mimicking Thymoma: A Case Report

Asuka Tomida, et al.

INTRODUCTION: The most common anterior mediastinal tumors are thymic epithelial tumors, including thymoma, and other kinds of diseases are relatively rare. Here, we report our experience in treating a patient with amyloidosis of the thymus, a very rare type of mediastinal lesion.

A Case of Gastric Neuroendocrine Carcinoma with Disseminated Recurrence 14 Years after Initial Surgery

Takara Kinjo, et al.

INTRODUCTION: Gastric neuroendocrine carcinoma (NEC) is a rare disease among gastric cancers, accounting for only 0.1%–0.6% of all cases. This disease is known to have a poor prognosis and a higher risk of recurrence compared to conventional gastric adenocarcinoma.

Pelvic Malignant Tumor with Liver Metastasis is Actually Conventional Leiomyoma with Abdominal Metastasis

Jingjun Yang et al.

INTRODUCTION: For this case, when the preoperative diagnosis indicated malignant tumor with metastasis, intraoperative frozen section examination was performed to adjust the surgical plan accordingly. This approach helped avoid overtreatment, minimizing the patient’s pain and surgical trauma. This case holds educational significance.

Anaplastic Sarcoma of the Kidney in a Child with DICER1 Syndrome: A Case Report

Eri Nagasaki-Maeoka et al.

INTRODUCTION: Anaplastic sarcoma of the kidney (ASK) is a rare renal tumor, with fewer than 50 cases reported in the literature since 2007. ASK is pathologically characterized by the presence of cystic and solid areas consisting of spindle cells showing marked anaplasia. Recent studies have reported that the vast majority of patients with ASK have DICER1 variants, and that these tumors are part of the DICER1 syndrome, a hereditary cancer predisposition disorder. Herein, we report a pediatric case of this rare tumor, including pathological findings, DICER1 gene analysis of the tumor and peripheral blood samples, and the disease course.