Female Uterus Demonstrating Endometrial Cancer in Sagittal Section

Description

Cut in true sagittal section, the uterus is presented from fundus to cervix with the endometrial cavity opened in profile, the endometrium lining the lumen and the myometrium forming the thick muscular wall. An endometrial tumor mass arises from the endometrial lining and projects into the uterine cavity, with its margins traced against adjacent endometrium and the inner myometrium. Anterior and posterior relationships are kept clear, with the cervix continuous inferiorly toward the vaginal canal and the uterine body positioned superior to the cervix, allowing you to judge whether the lesion remains confined to the corpus or approaches the endocervical canal. Boundaries tighten and relax as the sequence progresses, guiding the eye along the tumor–endometrium interface and toward any suggestion of myometrial invasion. Endometrial cancer, most often endometrioid adenocarcinoma, is staged largely by depth of myometrial invasion and spread to the cervical stroma, adnexa, and beyond, so seeing the lesion in sagittal section matters when teaching FIGO concepts alongside MRI and transvaginal ultrasound correlates. The animation format helps where a single frame fails: it can progressively outline the neoplasm, separate tumor bulk from the normal endometrial stripe, and emphasize the practical distinction between intracavitary growth and infiltration into the myometrium. Clear spatial cues also support discussion of typical presentations such as postmenopausal bleeding and the downstream workup, including endometrial biopsy and hysteroscopic sampling. Staging starts here. Use this sequence in gynecologic oncology lectures, pathology and histology modules that pair gross anatomy with endometrioid malignancy, and radiology teaching files when orienting trainees to sagittal pelvic anatomy and the endometrium–myometrium junctional region on imaging. It also fits surgical counseling content for total hysterectomy with bilateral salpingo-oophorectomy when explaining where the tumor sits within the uterine corpus. Anatomical accuracy verified by SciePro's Medical Advisory Board.