Benign Tumor Known as a Peduncular Submucosal Uterine Fibroid

Description

Centered on a coronal section of the uterus, the endometrial cavity is opened to expose the endometrium, surrounding myometrium, and outer perimetrium (serosa). From the submucosa, a pedunculated leiomyoma (uterine fibroid, myoma) projects into the uterine lumen on a narrow stalk, hanging inferiorly from the uterine wall rather than broad-based within the myometrium. Adjacent mucosa is shown as a continuous lining, and a segment of the uterine tube (oviduct) enters the superolateral uterine cornu for orientation. A small implanted embryo (early gestational sac) is also represented within the uterine lining, providing scale and clinical context. Peduncular submucosal fibroids matter because their intracavitary position distorts the endometrial surface and can provoke heavy menstrual bleeding, intermenstrual spotting, and cramping as the uterus attempts to expel the lesion through the cervix. In reproductive medicine, even a relatively small FIGO type 0 or type 1 submucosal myoma can reduce implantation and raise miscarriage risk by altering local endometrial receptivity and uterine contractility, which is why hysteroscopic myomectomy is often preferred when symptoms and fertility goals align. The stalk is the surgical decision point. It determines feasibility of transcervical resection and the likelihood of torsion or degeneration. Use this artwork in OB-GYN lectures on leiomyoma classification, endometrial cavity distortion, and infertility workups, or in patient-facing materials explaining why a submucosal fibroid differs from intramural disease on ultrasound and hysteroscopy. It also fits surgical atlases describing hysteroscopic approach, resection planes, and expected postoperative cavity restoration. Anatomical accuracy verified by SciePro's Medical Advisory Board.