Kiyosumi Shibata

Parasitic myoma is a relatively rare disease in which one or more leiomyomas form outside the uterus; however, the detailed causes are unknown. Few sporadic reports are available, and per our research, the maximum number of parasitic myomas…

Mesonephric-like adenocarcinoma of the uterine corpus was first reported in 2016, and added as a new item to the 5th edition of the WHO classification in 2020. It accounts for approximately 1% of patients with uterine corpus cancer, being r…

BACKGROUND: A non-invasive and sensitive biomarker for the detection of ovarian cancer (OvCa) is lacking. We aim to investigate if urinary placental leucine aminopeptidase (P-LAP) can serve as a reliable biomarker for OvCa. METHODS: P-LAP …

OBJECTIVE: The impact of systematic retroperitoneal lymphadenectomy (SRL) remains controversial in patients with advanced ovarian clear-cell carcinoma (CCC) who are optimally debulked. METHODS: Between 1986 and 2017, a total of 3,227 women…

Endometriosis, characterized by the presence of extra-uterine endometrium, is a common gynecologic disorder in reproductive-age women. Although the detailed molecular mechanism of etiology remains unelucidated, recent studies have gradually…

Fibrosarcoma is an extremely rare malignant sex-cord stromal tumor. Fibrosarcoma is generally unknown as an estrogen producing tumor. This report presents, for the first time, a case of estrogen producing ovarian fibrosarcoma in an 83-year-…

Kinesin family member 20A (KIF20A), which is involved in cytokinesis and intracellular transportation, has been recently reported to be upregulated in several malignancies and may contribute to chemotherapeutic resistance. We examined the d…

The mature cystic teratomas account for about 40-50% of all benign ovarian neoplasias. Over 80% of teratomas occur during the reproductive phase, in which women are usually asymptomatic. Ultrasound examination remains an extremely sensitive…