Masao Ichikawa

No ORCID on file · 17 papers in corpus · active 2009-2026

Study types

  • article 12
  • other 2
  • case-report 1
  • preprint 1
  • review 1

Condition tags

  • endometriosis 16
  • dysmenorrhea 4
  • chronic_pelvic_pain 4
  • infertility 3
  • endometrioma 3
  • dyspareunia 2
  • adenomyosis 1
other 2026
Journal of minimally invasive gynecology ·doi:10.1016/j.jmig.2026.03.030
review 2025
·doi:10.21037/gpm-25-3

Background and Objective: Endometriosis affects approximately 10% of women of reproductive age globally and is a leading cause of chronic pelvic pain and infertility. Accurate classification is essential for preoperative diagnosis, surgical…

article 2025
IDCases ·doi:10.1016/j.idcr.2025.e02184

Assisted reproductive technology procedures infrequently cause pelvic abscesses, but the risk is higher in patients with endometriosis. If antibiotic treatment of a pelvic abscess is unsuccessful, surgery is required-even during pregnancy. …

article 2024
Biomedicines ·doi:10.3390/biomedicines12061267

Background: Endometriosis is a multifaceted gynecological condition that poses diagnostic challenges and affects a significant number of women worldwide, leading to pain, infertility, and a reduction in patient quality of life (QoL). Tradit…

preprint 2024
·doi:10.20944/preprints202403.1678.v1

Conclusions: Our findings suggest that the NMS-E represents a valuable preoperative diagnostic tool for endometriosis, effectively correlating with the disease's severity and surgical outcomes. Incorporating the NMS-E into clinical pra…

other 2024
Journal of Nippon Medical School = Nippon Ika Daigaku zasshi ·doi:10.1272/jnms.JNMS.2024_91-604

The abdominal wall is an uncommon site for endometriosis that occurs in the soft tissues of the wound site after laparotomy. The present study reviewed cases of post-cesarean section abdominal wall endometriosis that were surgically treated…

article 2023
Diagnostics ·doi:10.3390/diagnostics13101774

Endometriosis-associated pain is an essential factor in deciding surgical indications of endometriosis. However, there is no quantitative method to diagnose the intensity of local pain in endometriosis (especially deep endometriosis). This …

article 2022
Journal of Nippon Medical School = Nippon Ika Daigaku zasshi ·doi:10.1272/jnms.jnms.2023_90-106

BACKGROUND: Accurate diagnosis of retroflexed uterus in daily practice is essential because this condition is related to pelvic pain and deep endometriosis. Uterine flexion can be measured by transvaginal ultrasonography (TVUS), a cost-effe…

article 2022
Gynecology and minimally invasive therapy ·doi:10.4103/gmit.gmit_36_22

Objectives: The objective of this study was to assess the potential risk factors for abscess development in patients with endometrioma who present with an acute abdomen. Materials and Methods: We retrospectively reviewed the records of 51 p…

article 2022
·doi:10.1272/manms.18.416
article 2021
Gynecology and minimally invasive therapy ·doi:10.4103/gmit.gmit_12_20

A 31-year-old nulliparous Japanese woman visited the clinic due to worsening dysmenorrhea. A cystic endometriotic lesion was found in the vesico-uterine pouch. Laparoscopic surgery was chosen due to the severe dysmenorrhea. Her first oocyte…

article 2021
·doi:10.1016/j.jmig.2021.09.215
article 2020
Journal of Obstetrics and Gynaecology Research ·doi:10.1111/jog.14191

Abstract Aim To investigate the accuracy and clinical value of an adhesion scoring system using transvaginal ultrasonography for endometriotic adhesion. Methods In this prospective observational study, we included 131 patients with endometr…

article 2020
·doi:10.1016/j.jmig.2020.08.201
case-report 2013
Journal of Nippon Medical School = Nippon Ika Daigaku zasshi ·doi:10.1272/jnms.80.78

Minimally invasive surgery is widely used in gynecology. Women who seek a cosmetic advantage (i.e., concealed scars) choose minimally invasive surgery. Although laparoendoscopic single-site surgery could be an ideal solution, some of our pa…

article 2013
Journal of Obstetrics and Gynaecology Research ·doi:10.1111/jog.12164

AIM: The aim of this study was to assess the cut-off age of the risk factors for postoperative recurrence of ovarian endometriomas and to evaluate the end-points of follow-up after laparoscopic excision of ovarian endometriomas. MATERIAL AN…

article 2009
Clinical and experimental obstetrics & gynecology

We report the case of a patient with adenomyosis complicated by deep vein thrombosis in whom low-dose gonadotropin-releasing hormone agonist (GnRHa) therapy was useful as a uterus-conserving therapeutic option. The patient was a 34-year-old…