Gynecologic and Obstetric Pathology

Adenomatoid Tumor

D efinition — A benign tumor composed of smooth muscle and mesothelium that is most common in the outer myometrium and fallopian tube. Clinical Features Epidemiology Uncommon but not rare. Reproductive-age to perimenopausal women. You’re Reading a Preview Become a…

Atypical Endometrial Polyp

D efinition — An endometrial polyp with features suggestive, but not diagnostic, of an müllerian adenosarcoma. Clinical Features Epidemiology Wide age range. Typically fourth to sixth decades. You’re Reading a Preview Become a Clinical Tree membership for Full access and…

Adenosarcoma of the Endometrium

D efinition — A low-grade stromal malignancy of the uterus with preservation of the normal resident endometrial epithelium. Clinical Features Epidemiology Most cases occur in postmenopausal women in their 60s, but a wide age range has been reported (teenagers to…

Undifferentiated Uterine Sarcoma

D efinition — A mesenchymal tumor of the uterus without smooth muscle or endometrial stromal differentiation. Clinical Features Epidemiology Undifferentiated uterine sarcomas are rare and account for less than 0.5% of all uterine malignancies and only 10% to 15% of…

High-Grade Endometrial Stromal Sarcoma

D efinition — An intermediate to high-grade stromal sarcoma with a distinct molecular genotype. Clinical Features Epidemiology Overall endometrial stromal sarcoma (ESS) is rare; it accounts for less than 0.5% of all uterine malignancies and only 10% to 15% of…

Uterine Tumor Resembling Sex Cord Stromal Tumor

D efinition — A benign low-grade mesenchymal tumor of the uterus. Clinical Features Epidemiology Uterine tumor resembling sex cord tumor (UTRSCT) is rare; it accounts for less than 0.5% of all uterine malignancies and only 10% to 15% of mesenchymal…

Low-Grade Endometrial Stromal Sarcoma

D efinition — A malignancy composed of cells resembling proliferative-phase endometrial stroma. Clinical Features Epidemiology Endometrial stromal sarcoma (ESS) is rare; it accounts for less than 0.5% of all uterine malignancies and only 10% to 15% of mesenchymal uterine malignancies.…

Endometrial Stromatosis

D efinition — An endometrial polyp, composed of benign smooth muscle and glands. Clinical Features Epidemiology Same as for adenomyosis, predominating in the fourth and fifth decades. However, the absence of glands is more likely to be seen postmenopause after…

Stromomyoma

D efinition — A low-grade stromal tumor with smooth muscle differentiation. Clinical Features Epidemiology Same as endometrial stromal nodules (ESNs); are uncommon neoplasms that occur at any age. Most often identified during the fifth and sixth decades of life. You’re…

Endometrial Stromal Nodule

D efinition — A benign neoplasm composed of cells resembling normal endometrial stroma. Clinical Features Epidemiology Endometrial stromal nodules (ESNs) are uncommon neoplasms that occur at any age. Most often identified during the fifth and sixth decades of life. JAZF1/JJAZ1…