Surgical Case Reports

Laparoscopic Common Bile Duct Exploration for Choledocholithiasis in a Patient with Situs Inversus Totalis and Prior Total Gastrectomy with Roux-en-Y Reconstruction: A Case Report

Tomoyuki Nagata, et al.

INTRODUCTION: Situs inversus totalis (SIT) is a rare congenital condition characterized by mirror-image transposition of the thoracic and abdominal viscera. Herein, we report a rare case of laparoscopic common bile duct exploration with choledochotomy and stone extraction in a patient with SIT and a history of total gastrectomy with Roux-en-Y (R-Y) reconstruction.

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Emergency Surgical Management of Chemotherapy-Induced Tumor Rupture in a Patient with MYCN-Amplified Neuroblastoma: A Case Report

Katsuhiro Ogawa, et al.

INTRODUCTION: Tumor rupture with neuroblastoma is an uncommon but serious complication, particularly in high-risk cases involving MYCN amplification. When rupture occurs soon after induction chemotherapy is initiated, rapid deterioration and abdominal compartment syndrome (ACS) may develop. Early identification of high-risk patients and their readiness for surgical management are essential to optimizing outcomes.

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Combined Laparoscopic and Posterior Approach Resection of Presacral Neuroblastoma with Rectobulbar Urethral Fistula

Takashi Kobayashi, et al.

INTRODUCTION: We herein report a case of presacral neuroblastoma (NB) with a rectobulbar urethral fistula. We successfully resected the tumor with a combined laparoscopic and posterior approach and simultaneously performed posterior sagittal anorectoplasty (PSARP).

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Long-Term Survival Achieved with Multimodal Therapy and Multiple Hepatic Resections for Pancreatic Primary Mixed Neuroendocrine–Non-Neuroendocrine Neoplasm Comprising Acinar Cell Carcinoma and Neuroendocrine Carcinoma: A Case Report

Hiroto Arino, et al.

INTRODUCTION: In the 2019 World Health Organization (WHO) classification, tumors comprising ≥30% of both neuroendocrine and non-neuroendocrine components are defined as mixed neuroendocrine–non-neuroendocrine neoplasms (MiNENs). Acinar cell carcinoma (ACC) constitutes <1% of pancreatic tumors, while neuroendocrine carcinoma (NEC) accounts for 1%–2%, making MiNENs with both characteristics extremely rare. The role of surgical resection in resectable NEC remains unclear; however, it is generally recommended as part of multimodal therapy. This case presents a pancreatic mixed acinar–NEC successfully managed with multimodal therapy, including repeated liver metastasis resections, achieving long-term disease control.

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Metastasis of Ovarian Cancer to the Duodenum: A Case Report

Hiromitsu Maehira et al.

INTRODUCTION: Ovarian cancer remains a leading cause of cancer-related mortality. Although the peritoneum and abdominal lymph nodes are the most common sites of metastasis, duodenal metastasis is extremely rare. We report a rare case of duodenal metastasis from ovarian clear cell carcinoma (OCCC) that initially presented with gastrointestinal bleeding and was successfully treated with curative resection.

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Immaturity of Ganglia in Familial Onset: Three Cases of Twins and Their Brother

Shotaro Taki et al.

INTRODUCTION: Immaturity of ganglia (IG) is a rare disease and is classified as a type of allied disorders of Hirschsprung’s disease (HSCR). Recently, familial occurrence of HSCR has often been reported. However, there have been very few reports of familial occurrence of IG. We report 3 cases of intrafamilial occurrence of IG.

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Feasibility of Intraoperative Transoral Ultrasonography during the Sistrunk Procedure for Thyroglossal Duct Cysts Located on the Dorsal Side of the Hyoid Bone: A Case Report

Masanaga Matsumoto, et al.

INTRODUCTION: Thyroglossal duct cysts (TGDCs) are the most common congenital midline neck masses encountered in pediatric populations and are usually located anterior to the hyoid bone, making them readily identifiable by both superficial ultrasonography and skin palpation. However, intraoperative identification can be challenging in cases in which the cyst is located on the dorsal side of the hyoid bone or near the base of the tongue, which increases the risk of incomplete excision or rupture. This report describes the pediatric case of a TGDC located between the hyoid bone and the foramen cecum that was safely excised under intraoperative transoral ultrasonography (TOUS) guidance to facilitate identification of the entire cyst.

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Solid–Basaloid Adenoid Cystic Carcinoma of the Ipsilateral Breast Remnant in Postoperative Luminal HER2-Type Breast Cancer: A Case Report

Yuji Kobayashi, et al

INTRODUCTION: Solid–basaloid adenoid cystic carcinoma (SB-AdCC) is a rare and aggressive variant of AdCC of the breast. Moreover, it is an extremely rare subtype of triple-negative breast cancer, accounting for <1% of all breast cancers. We report a case of SB-AdCC.

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Infant with Intralobar and Extralobar Bilateral Pulmonary Sequestration Requiring Simultaneous Resection: A Case Report

Kan Suzuki, et al.

INTRODUCTION: Coexisting bilateral intralobar and extralobar pulmonary sequestration has rarely been reported, with no previous reports indicating that simultaneous resection is necessary because of a common drainage vein.

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A Case of Right Hepatic Vein Thrombus with Spontaneous Peripheral Shunt Successfully Treated via Left Trisectionectomy with Bile Duct Resection

Takahiro Shoda, et al.

INTRODUCTION: Left trisectionectomy with bile duct resection is a high-risk procedure that requires thorough preoperative evaluation to prevent postoperative liver failure. In addition, there are a few reports of highly invasive hepatectomy in cases where hepatic vein thrombosis is present preoperatively.

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A Case of Esophageal Penetration of a Fish Bone into the Left Atrium Rescued by Urgent Surgery

Norihiko Sakamoto, et al.

INTRODUCTION: Esophageal penetration due to accidental foreign body ingestion is relatively rare but has a poor prognosis. Penetration into the left atrium is extremely rare, and only a few cases have been reported. A case of foreign body penetration into the left atrium is reported.

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A Case of Breast Cancer with Cystic Axillary Lymph Node Metastasis

Mariko Yoshino, et al.

INTRODUCTION: Encapsulated papillary carcinoma (EPC) is a relatively rare form of breast cancer and is often low grade. Even in cases of EPC with invasion, it rarely metastasizes. We herein report a case of EPC with invasion that presented with a cystic axillary lymph node metastasis that was highly characteristic on imaging.

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