Masafumi Koshiyama
ORCID: 0000-0003-2412-4430
· 9 papers in corpus
2019
The contribution of diet to cancer risk has been considered to be higher in advanced countries than in developing countries. In this paper, I review the current issues (a review of the relevant literature), and the effects of the dietary an…
2017
Ovarian cancer is the foremost cause of gynecological cancer death in the developed world, as it is usually diagnosed at an advanced stage. In this paper we discuss current issues, the efficacy and problems associated with ovarian cancer sc…
review
2014
Type I ovarian tumors, where precursor lesions in the ovary have clearly been described, include endometrioid, clear cell, mucinous, low grade serous, and transitional cell carcinomas, while type II tumors, where such lesions have not been …
article
2011
Summary Background: Adenomyomectomy and myomectomy are treatment options to reduce dysmenorrhea and to preserve fertility. Recently, the number of adenomyomectomies and myomectomies performed has gradually increased. On the other hand, an i…
article
2004
Müllerian adenosarcomas are rare tumors that occur in only 8% of uterine sarcomas (1). This tumor is an uncommon variant of mixed mesodermal tumor (MMT) of the uterus, and exhibits a malignant stroma and a benign glandular element. In usual…
article
2004
The relationship between endometrial carcinoma and coexistent adenomyosis uteri, endometriosis externa and myoma uteri has been reported in only a few studies. We studied the characteristics of the endometrial carcinomas accompanied by thes…
other
2002
Adenocarcinomas arising from adenomyosis uteri are rare. This study reports four such cases and characterizes them clinically and microscopically. In all four patients, the endometrial cytology was negative, and MR imaging and ultrasound so…
article
2002
This study presents a case of endometrial clear cell adenocarcinoma complicated by complex atypical glandular hyperplasia surrounded by adenomyosis in the uterine myometrium. The former was immuno-negative for estrogen receptor (ER) and pos…
article
2001
OBJECTIVE: To investigate the correlation between benign gynecologic diseases and hormone-dependent malignancies such as endometrial carcinoma in postmenopausal women. DESIGN: We retrospectively analyzed the prevalence of myoma uteri and ad…