Low-grade endometrial stromal sarcoma combined with leiomyoma (stromomyoma): A bizarre tumor of the uterus in a premenopausal woman.

OBJECTIVE: Uterine sarcomas are very rare malignancies, and when a hysterectomy is performed for benign causes, a risk of about 1/500 is mentioned for possible uterine sarcomas. Endometrial stromal neoplasms are a rare subgroup of uterine sarcomas that account for less than 10% of all uterine sarcomas. Mixed endometrial stromal and smooth muscle tumors, also known as stromomyomas, are defined as having at least 30% each of endometrial stromal and smooth muscle components. As a result, stromomyoma is an extremely rare malignant mixed mesenchymal tumor of the uterus. Both clinically and histologically, the differential diagnosis is challenging. Stromomyoma should be kept in mind in the differential diagnosis of large uterine masses, even if these masses are seen in an asymptomatic woman of reproductive age. In this study, we aimed to present this bizarre tumor of the uterus detected in a premenopausal woman.

Invasive molar pregnancy in rudimentary uterine horn.

OBJECTIVE: Incidence of molar pregnancy is 1-3/1000 pregnancies. Invasive mole is a local invasive form of gestational trophoblastic neoplasias which is mostly seen in reproductive age and usually follows a molar pregnancy and rarely has an initial presentation. Ectopic pregnancy in rudimentary uterine horn is extremely rare and is seen in 1/100,000 - 140,000 pregnancies. Invasive mole has seldom been reported in ectopic localizations but not in a patient with Müllerian duct anomaly. Here we represent a case of invasive mole in a reproductive age patient with unicornuate uterus and rudimentary communicating uterine horn. Invasive mole presented initially, mimicking ectopic pregnancy. The patient underwent diagnostic laparoscopy and resection of rudimentary uterine horn was performed. The pathology result was reported as an invasive mole. Serum b-hCG levels normalized on post-operative first month and no additional chemotherapy was needed.

Is lower uterine segment involvement a prognostic factor in endometrial cancer?

BACKGROUND/AIM: The purpose of this study is to investigate the prognostic significance of lower uterine segment (LUS) involvement in endometrial cancer (EC). MATERIALS AND METHODS: We reviewed the patients who were operated at our institution between July 2007 and March 2015 with the diagnosis of EC. Tumors localized in the corpus and involving the LUS or localized entirely in the LUS formed Group A, while tumors in the uterine corpus without LUS involvement formed Group B. Clinicopathological characteristics and survival of the patients were compared in both groups. RESULTS: A total of 500 patients were included in the study. There were 139 patients who had tumors involving the LUS and formed Group A, while 361 patients with endometrial tumors in the uterine corpus without LUS involvement formed Group B. We did not detect a significant difference between survival of the patients in group A and group B (78 months vs. 87 months, respectively; P > 0.05). CONCLUSION: We found that LUS involvement was not an independent prognostic factor for poor survival, but it is associated with other poor prognostic factors such as deep myometrial invasion, uterine serosal involvement, lymphovascular space invasion, lymph node metastasis and higher FIGO grade.