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http://dx.doi.org/10.1111/j.1471-0528.1993.tb15219.x | DOI Listing |
J Transl Med
December 2024
Department of Biological Science, University of Tulsa, Tulsa, Oklahoma, USA.
Background: The mechanisms enabling sperm to locate unfertilized eggs within the fallopian tubes remain a subject of debate in reproductive biology. Previous studies using polytocous mammals observed a 1:1 sperm-egg ratio within the ampulla at the time of fertilization. From these observations, it is hypothesized that this mechanism could be linked to sperm-egg fusion, such that unfertilized eggs may attract sperm until fusion occurs, whereupon the attraction ceases.
View Article and Find Full Text PDFDiagnostics (Basel)
November 2024
Endocrinology Department, Elias Emergency University Hospital, 011461 Bucharest, Romania.
: Persistent Müllerian duct syndrome (PMDS) is a rare disorder of sex development (DSD) caused by mutations in the genes coding anti-Müllerian hormone (AMH) or the AMH receptor, characterized by the persistence of Müllerian derivatives, the uterus and/or fallopian tubes, in otherwise normally virilized boys. Testicular regression syndrome is common in PMDS, yet the association with supernumerary testis has been reported in only two patients where genetic testing was not performed. : Thus, we report an individual with this particular association caused by a previously unreported homozygous variant in the gene to enable future genotype-phenotype correlations in this rare disorder.
View Article and Find Full Text PDFEcotoxicol Environ Saf
October 2024
Institute of Reproductive Medicine, Medical School, Nantong University, Nantong 226019, China. Electronic address:
Int J Surg Pathol
August 2017
1 University of Yamanashi, Yamanashi, Japan.
Extraovarian sex cord-stromal tumor is an exceedingly uncommon entity that may cause a diagnostic dilemma clinically. We report a case of extraovarian fibroma with minor sex cord elements arising in the left broad ligament. The patient was a 66-year-old woman presenting with an intra-abdominal solid mass near the left ovary on magnetic resonance imaging.
View Article and Find Full Text PDFJ Obstet Gynaecol Res
July 2016
Department of Obstetrics and Gynecology, Dokkyo Medical University, Mibu, Japan.
Ectopic ovary, a designation that includes supernumerary ovaries and accessory ovaries, is a rare gonadal anomaly. We encountered a patient with a metastasis to such an anomaly and herein provide a review of the published work. A 43-year-old woman was diagnosed with stage IIb cervical adenocarcinoma with suspicion for a right ovarian malignancy.
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