Hiroyuki Kanao

Up to 1% of women with endometriosis develop endometriosis-associated neoplasms [1]. Most endometriosis-associated malignant tumors develop from the ovarian endometriomas, whereas those developing from extragonadal lesions are extremely rar…

Approximately 20% of cases of epithelial ovarian cancer (EOC) are hereditary, sharing many causative genes with breast cancer. The lower frequency of EOC compared to breast cancer makes it challenging to estimate absolute or relative risk a…

BACKGROUND: The aim of this study was to investigate the safety and clinical usefulness of early oral feeding (EOF) after rectosigmoid resection with anastomosis for the treatment of primary ovarian cancer. METHODS: We performed a retrospe…

BACKGROUND: Uterine adenosarcoma, a rare uterine tumor subtype, is a biphasic tumor consisting of epithelial and mesenchymal elements. To date, there is no research comparing the histopathological features and immunohistochemistry of primar…

STUDY OBJECTIVE: The findings of previous studies have been inconsistent as to whether benign hysterectomy via minimally invasive laparoscopic surgery increases the risk of vesicoureteral injury when compared with laparotomy. The objectives…

OBJECTIVE: The aim of the study was to identify risk factors associated with laparotomy conversion during total laparoscopic hysterectomy for endometrial cancer. METHODS: This is a retrospective study examining endometrial cancer cases tha…

Objective: We investigated the prognosis of women with ureteral endometriosis after laparoscopic ureteral resection and ureteroneocystostomy.Study Design: From 2008 through 2012, we followed nine cases of ureteral endometriosis after laparo…

Total laparoscopic hysterectomy (TLH) may be difficult to complete in patients with adhesions due to endometriosis or anatomical distortions due to large myomas and cervical myomas. Our purpose is to consider methods for completing TLH in t…

INTRODUCTION: Total laparoscopic hysterectomy has been reported as having a higher incidence of vaginal cuff dehiscence compared with the abdominal and/or vaginal hysterectomy. The cause of vaginal cuff dehiscence after total laparoscopic h…

The development of endoscopic equipment and surgical skills make more complicated procedures possible laparoscopically. The application of these techniques to oncologic surgery, which used to be basically the most invasive procedure, has be…