Atsushi Imai

Thoracic endometriosis is characterized by the presence of endometrial-like glands...

Dienogest, a novel progestin, is considered an effective pharmacological intervention for ovarian endometrioma due to its favorable side effect profile. We present a rare case of malignant transformation of an ovarian endometrioma into carc…

Inguinal endometriosis is an infrequent extragenital manifestation of endometriosis. Optimal management involves the radical surgical excision of the lesion, supplemented by hormone therapy. Recent case reports and retrospective analyses ha…

Thoracic endometriosis is characterized by the presence of endometrial-like glands and stroma within the lung parenchyma or on the diaphragm and pleural surfaces. It remains unclear how endometrial tissue migrates into the thoracic cavity a…

Women of reproductive age group who experience the catamenial pneumothorax and temporal respiratory symptoms may lead the physician to the possibility of thoracic...

BACKGROUND: Estrogen deprivation therapy for myoma/adenomyosis decreases bone mineral density and can only be applied in the short term, as temporizing measures in the premenopausal woman. OBJECTIVE: To examine the effects of bisphosphonate…

Gastrointestinal (GI) perforation accounts for over 90% of acute abdomen and pneumoperitoneum. The presence of pneumoperitoneum secondary to spontaneously perforated pyometra is an interesting yet confusing finding given the absence of gast…

Background: Ovarian remnant syndrome is a rare gynecologic complication, most induced by difficult bilateral salpingo-oophorectomy (BSO) with the residual ovarian tissue on the pelvic wall. The residual ovarian tissue may eventually cause m…

Intrauterine devices (IUDs) provide highly effective, long-term, safe, reversible contraception, and are the most widely used reversible contraceptive method worldwide. The levonorgestrel-releasing IUD (LNG-IUD), originally designed for lon…

Ovarian remnant syndrome (ORS) is a rare, but well-known gynecological complication, most often induced by difficult bilateral salpingo-oophorectomy (BSO) procedures that leave residual ovarian tissue on the pelvic wall. The most common pre…

A 40-year-old woman visited our hospital with asymptomatic macroscopic hematuria. A nonpapillary ureteral tumor protruding from the left orifice was identified by cystoscopy. Computed tomography revealed left hydronephrosis due to the urete…

A 40-year-old woman visited our hospital with asymptomatic macroscopic hematuria. A nonpapillary ureteral tumor protruding from the left orifice was identified by cystoscopy. Computed tomography revealed left hydronephrosis due to the urete…

Abdominal pain with an associated pelvic mass is a common problem in everyday practice. Concerns about ectopic pregnancy, torsion of an enlarged ovary or malignancy usually dominate the diagnostic evaluation. On physical and imaging examina…

Sequential Management with Gonadotropin-Releasing Hormone Agonist and Dienogest of Endometriosis-Associated Uterine Myoma and Adenomyosis

PURPOSE: Uterine leiomyomas are the most common benign tumors of reproductive age women, but there is no effective medical therapy to data. Aim of this study was to examine and compare the efficacy of gonadotropin-releasing hormone agonist …

BACKGROUND: Because of its low incidence, medical treatment of has not yet been well established although surgical excision is generally considered effective. We report the first case of primary bladder endometriosis successfully managed wi…

Pelvic adhesion can form as a result of inflammation, endometriosis or surgical trauma. Most surgical procedures performed by obstetrician-gynecologists are associated with pelvic adhesions that may cause subsequent serious sequelae, includ…

Gonadotropin-releasing hormone (GnRH) analogue has beneficial effects on the size and symptoms of endometriosis and uterine leiomyomas as a result of suppressing ovarian steroidogenesis. GnRH analogues are also the preferred treatment for a…

Rabbit uterus contains type I and II oestrogen binding sites in the cytosol, and nuclear fractions. Oestrogen-stimulated increase in uterine weight was inhibited by concurrent treatment with progesterone or danazol. Oestrogen-induced type I…