Watanabe M

The Japan Society for Endoscopic Surgery (JSES) conducts a nationwide survey every 2 years to evaluate the status and trends of endoscopic surgery in Japan. This article reports the results of the 17th Nationwide Survey conducted by the JSE…

BACKGROUND: Ovarian autoamputation is a rare consequence of adnexal torsion. Preoperative diagnosis is challenging, and ovarian and tubal function on the affected side is rarely preserved once autoamputation has occurred. CASE: A 29-year-o…

Nonclinical studies in animal models have often treated male animals as the default, based on the assumption that estrous-cycle hormonal variation in females increases variability and complicates interpretation. This convention is a structu…

INTRODUCTION: We present a patient with bladder pain syndrome (BPS) who underwent repeated bladder hydrodistentions. CASE PRESENTATION: A female patient visited our department because of refractory bladder pain. She was diagnosed with BPS;…

To study the pathological contribution of fatty acid (FA) metabolism regulators including fatty acid binding protein 4 (FABP4), FABP5, peroxisome proliferator-activated receptor alpha (PPARα), and PPARγ in ovarian carcinoma, non-cancerous h…

Abstract Endometriosis, a common estrogen-dependent inflammatory disease, and ovarian endometriotic cysts (ECs) cause dysmenorrhea and infertility. Currently available hormonal therapies for EC treatment, are sometimes ineffective. The sig…

A 47-year-old woman was treated as ileus, and incidentally, computed tomography scan found right ovarian cyst diagnosed with endometriotic cyst by magnetic resonance imaging (MRI). Moreover, in the right paravaginal space, there was a round…

Spontaneous hemoperitoneum is a rare and potentially life-threatening condition with a wide differential diagnosis. Gastrointestinal stromal tumors (GIST) can present with spontaneous hemoperitoneum, although diagnosing GIST as the cause of…

Dienogest (DNG), is an effective and widely used progestin used in the treatment of endometriosis, yet clinically, a subset of cases show resistance to DNG treatment. During a previous investigation on the effect of DNG of cytokines and gro…

PURPOSE: The aim of this prospective multi-center registry was to evaluate the safety and clinical performance of INTERCEED® in laparoscopic colorectal surgery. METHODS: This study was a prospective, multi-center, single-arm registry where…

AIM: We aimed to investigate the safety and efficacy of dienogest (DNG), a progestational 19-norsteroid, administered for 52 weeks in patients with symptomatic adenomyosis. METHODS: A total of 130 patients with adenomyosis received 2 mg of…

BACKGROUND: Postoperative adhesions are the major cause of postoperative complications including intestinal obstruction, infertility, and chronic pelvic pain. In order to reduce postoperative adhesions, Terumo Corporation (Tokyo, Japan) has…

We report a rare case of perianal endometriosis, diagnosed in a 39-year-old woman who presented with a several-day history of a painful mass in the perineum. Perianal examination showed redness and swelling in the right anterior direction. …

Endocervical-like mucinous borderline tumor (EMBT) is a distinct entity of the ovary that seems to be underrecognized. It occurs with relatively high frequency in Japanese women. Compared with intestinal-type mucinous borderline tumor (IMBT…

We examined human adipose tissue, liver, and bile from humans in Japan to understand the contamination status, specific accumulation, and elimination of two newly identified environmental contaminants, tris(4-chlorophenyl)methane (TCPMe), t…