case_images: PMC11772977_01
case_images: (a) Transvaginal ultrasound indicates an empty uterine cavity with no evidence of a gestational sac, along with the heterogeneous mass (arrow) on the posterior wall of the uterus. (b) Transvaginal ultrasound shows an ovarian endometrioma and the heterogeneous mass (arrow).
case_images: gr1.jpg
case_images: PMC11772977_01_gr1.jpg
case_images: f0005
case_images: Transvaginal ultrasonography revealed an empty uterine cavity without evidence of a gestational sac, along with a heterogeneous mass on the posterior wall of the uterus (Fig. 1a) and a right ovarian endometrioma and the heterogeneous mass (Fig. 1b).
case_images: Sagittal contrast-enhanced CT scan of the pelvis demonstrates a mass posterior to the uterus (arrow). The mass shows marked enhancement at the periphery and was suspected to be a gestational sac implanted in the peritoneum.
case_images: gr2.jpg
case_images: PMC11772977_01_gr2.jpg
case_images: f0010
case_images: Contrast-enhanced computed tomography suggested peritoneal pregnancy (Fig. 2).
case_images: Laparoscopic intraoperative views show the bulging mass (*) measuring 3 cm in the posterior wall of the uterus with a dark red surface. (For interpretation of the references to colour in this figure legend, the reader is referred to the web version of this article.)
case_images: gr3.jpg
case_images: PMC11772977_01_gr3.jpg
case_images: f0015
case_images: An approximately 3 cm bulging mass with a dark red surface was observed on the posterior wall of the uterus (Fig. 3).
case_images: Histopathological examination shows the presence of chorionic villi in the uterine myometrium (hematoxylin and eosin, original magnification x200).
case_images: gr4.jpg
case_images: PMC11772977_01_gr4.jpg
case_images: f0020
case_images: Histopathological examination of the excised tissue revealed chorionic villi within the uterine myometrium, with trophoblast cells infiltrating the muscle tissue and the absence of decidual tissue, confirming the diagnosis of IMP (Fig. 4).