Yamamoto M

PurposeUrachal cyst is a type of congenital anomaly that may undergo malignant transformation. Partial cystectomy with en-bloc resection of the urachus is appropriate treatment for urachal remnants. We performed near infrared ray-guided sur…

INTRODUCTION: Appendiceal intussusception is extremely rare, occurring in 0.01% of cases of appendicitis. Endometriosis-related intussusception is the most common in adults. Most reported cases require extensive surgery, such as ileocecal r…

STUDY OBJECTIVE: To investigate the feasibility of magnetic resonance imaging (MRI) in detecting and classifying adhesions between pelvic organs caused by endometriosis, comparing MRI findings to those obtained by laparoscopy. DESIGN: Pros…

IntroductionVaricocelectomy is well known to improve the pregnancy outcome of patients with clinical varicoceles in assisted reproductive technologies as well as spontaneous conception. Therefore, this study aimed to evaluate the additional…

BackgroundSince the human papillomavirus vaccines do not eliminate preexisting infections, nonsurgical alternative approaches to cervical intraepithelial neoplasia (CIN) have been required. We previously reported that FOXP4 (forkhead box tr…

BackgroundLow birth weight (LBW) is a leading cause of neonatal morbidity and mortality, and increases various disease risks across life stages. Prediction models of LBW have been developed before, but have limitations including small sampl…

In pulmonary lymphangitic carcinomatosis, it can be difficult to identify the primary site of the cancer on computed tomography (CT) imaging. Here, we report a rare case of pulmonary lymphangitic carcinomatosis, which was difficult to diagn…

INTRODUCTION AND IMPORTANCE: Ectopic endometrium in the appendix is rare. The relationships between ectopic endometrium in the alimentary tract and digestive symptoms and between digestive symptoms due to ectopic endometriosis and periodic …

OBJECTIVE: To examine the safety and feasibility of total laparoscopic retrograde hysterectomy (TLreH) in patients with obliterated cul-de-sac due to severe endometriosis. STUDY DESIGN: This retrospective case-control observational study w…

IntroductionAppendiceal intussusception sometimes results from appendiceal cancer. Ileocecal resection instead of appendectomy is often chosen as a treatment as it is technically difficult to resect the appendix alone without causing dissem…

PurposeThis study aimed to analyze whether the presence of refractile bodies (RFs) negatively affects fertilization, embryo development, and/or implantation rates following intracytoplasmic sperm injection (ICSI).MethodsThis retrospective e…

The overwhelming majority of participants in current genetic studies are of European ancestry. To elucidate disease biology in the East Asian population, we conducted a genome-wide association study (GWAS) with 212,453 Japanese individuals …

Endometriosis is a chronic disease that commonly affects women in their reproductive age. It has been reported that the infertility due to endometriosis is largely caused by pelvic adhesion, oocyte damage, and so on. There are several cause…

Mirror image is one of the most difficult situations that the assistant surgeon encounters in laparoscopic colorectal surgery. The aim of the present study was to investigate whether task performance with mirror images improves by changing …

Ovarian clear cell carcinoma (OCCC) is the most refractory subtype of ovarian cancer and more prevalent in Japanese than Caucasians (25% and 5% of all ovarian cancer, respectively). The aim of this study is to discover the genomic alteratio…

BACKGROUND: Intestinal endometriosis is a common benign disease among menstruating women that affects the intestinal tract. CASE PRESENTATION: This case report presents seven Japanese cases of intestinal endometriosis with colorectal cancer…

Expectant management leads to successful vaginal delivery following intrauterine fetal death in a woman with an incarcerated uterus. Management of intrauterine fetal death in the second or third trimester of pregnancy in women with an incar…

Large-cell neuroendocrine carcinoma (LCNEC) is a high-grade neuroendocrine tumor. LCNECs arising from the genital organs are highly malignant and rare, with <20 cases of LCNEC developing from the uterine endometrium reported to date. We her…

BackgroundUterine serous endometrial intraepithelial carcinoma (SEIC) is an immediate precursor of invasive carcinoma. The majority of stage IA SEICs are curable, but those with latent peritoneal metastasis and/or capillary lymphatics invas…

Retrograde menstruation is the backward movement of menstrual fluids. The underlying mechanisms remain unknown. The converse current itself is benign, but the result can be abdominal pain caused by peritoneal irritation and, eventually, end…

ObjectiveTo evaluate the evidence for fascial closure of 5-mm laparoscopic trocar sites.MethodsWe conducted electronic database searches of PubMed and the Cochrane Library for articles published between November 2008 and December 2010. We u…

Animal models for CP in rats can be classified into 2 groups: one is noninvasive or nonsurgical models and the other is invasive or surgical models. Pancreatic injury induced by repetitive injections of supramaximal stimulatory dose of caer…

Leuprorelin (leuprolide, D-Leu6-(des-Gly10-NH2)-LH-RH ethylamide) acetate is a super-active agonist of luteinizing hormone-releasing hormone (LH-RH). We developed once-a-month injectable microcapsules of this agonist by our novel in-water d…