Can the microcystic, elongated and fragmented pattern of invasion influence the evaluation of the depth of myometrial invasion in low-grade endometrioid endometrial cancer using imaging techniques?

Objectives: The microcystic, elongated and fragmented pattern of invasion can be associated with an underestimation of the depth of myometrial invasion by imaging techniques. We aimed to evaluate the influence of microcystic, elongated and fragmented pattern of invasion in the diagnostic performance of transvaginal ultrasound scan and magnetic resonance imaging for the prediction of the depth of myometrial invasion in low-grade endometrioid endometrial carcinomas. Methods: Prospective and consecutive study including all low-grade (G1-G2) endometrioid endometrial carcinomas diagnosed between October 2013 and July 2018 in a tertiary hospital. Preoperative staging was performed with transvaginal ultrasound scan and/or magnetic resonance imaging followed by surgical staging. Final histology was considered as the reference standard. Sensitivity, specificity and diagnostic accuracy for the prediction of depth of myometrial invasion was calculated for both imaging techniques. The STARD 2015 guidelines were used. Results: A total of 136 patients were consecutively included. Transvaginal ultrasound scan was performed in 132 patients and magnetic resonance imaging in 119 patients. The diagnostic accuracy of transvaginal ultrasound scan for the prediction of depth of myometrial invasion in the microcystic, elongated and fragmented negative group (82% (95% confidence interval = 73-88)) was higher compared to the microcystic, elongated and fragmented positive group (61% (95% confidence interval = 36-83)). The diagnostic accuracy of magnetic resonance imaging was also higher in the microcystic, elongated and fragmented negative group (80% (95% confidence interval = 71-87)) compared to the microcystic, elongated and fragmented positive (47% (95% confidence interval = 21-73)). Conclusions: In low-grade endometrioid endometrial carcinomas with a positive microcystic, elongated and fragmented pattern of invasion, the evaluation of the depth of myometrial invasion using transvaginal ultrasound scan and magnetic resonance imaging may be underestimated.

A giant superinfected uterine angioleiomyoma with distant septic metastases: an extremely rare presentation of a benign process and a systematic review of the literature.

PURPOSE: Uterine angioleiomyoma is a rare type of leiomyoma variant and there are few cases reported in the literature. The definitive diagnosis is usually obtained only after the histopathologic examination because there are no specific imaging criteria for this disease. The objective of this article is to review published cases about this clinical condition. METHODS: We report a case of giant angioleiomyoma superinfected by S. agalactiae with the development of latero-cervical distant metastasis in a premenopausal woman. Firstly, the case herein reported was orientated as an endometrial stroma sarcoma in the peri-operative histologic examination by frozen sections. It was treated with laparotomic total hysterectomy, bilateral salpingo-oophorectomy, inframesocolic omentectomy and pelvic and paraaortic lymph node dissection. Postoperative definitive anatomopathological analyses using a proper immunohistochemical panel revealed a case of uterine angioleiomyoma. We also review other case reports published about this clinical condition. RESULTS: We present the first case reported in the literature, in our knowledge, of a giant angioleiomyoma superinfected by S. agalactiae with the development of distant septic metastases. Immunohistochemistry permitted the definitive diagnosis of angioleiomyoma. Treatments previously reported are hysterectomy or tumor resection and any patient recurred. CONCLUSIONS: The definitive diagnosis is usually obtained after the definitive histopathologic examination since the use of immunohistochemical study has an important role in this regard. Complete surgical removal of the lesion is the treatment of choice, with no recurrent cases reported to date.