Ectopic Intramural Isthmic Pregnancy: Case Report.

J Clin Med

Obstetrics and Gynecology, IRCCS San Gerardo dei Tintori Foundation, 20900 Monza, Italy.

Published: July 2025


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Article Abstract

Intramural pregnancy (IMP) is a rare type of ectopic pregnancy where the embryo implants within the uterine myometrium. This condition carries a high risk of massive hemorrhage, uterine rupture, and potentially life-threatening complications. We present a case of a 35-year-old patient who underwent in vitro fertilization (IVF) and was diagnosed with an IMP located in the back-isthmian portion of the uterus by ultrasound scan. We performed a conservative treatment approach based on the gestational sac location and the patient's stable clinical condition and desire for future fertility. We first administered mifepristone 600 mg, followed by intracavitary methotrexate under ultrasound guidance. Although originally planned, a uterine artery embolization was not performed due to the evidence of bilateral anastomoses between the uterine and ovarian arteries. Progressive reabsorption of pregnancy was observed over the course of 8 months. Non-surgical management can be considered for IMP, thus allowing fertility preservation.

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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC12295025PMC
http://dx.doi.org/10.3390/jcm14145146DOI Listing

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