International journal of hyperthermia : the official journal of European Society for Hyperthermic Oncology, North American Hyperthermia Group · 2021
MRI features and clinical outcomes of unexpected uterine sarcomas in patients who underwent high-intensity focused ultrasound ablation for presumed uterine fibroids.
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Wang Qian, Wu Xiuying, Zhu Xiaogang, Wang Jian, Xu Feng, Lin Zhenjiang, Gong Chunmei, He Min, Zhang Lian
Аннотация
OBJECTIVE: To investigate the MRI features and clinical outcomes of unexpected uterine sarcomas in patients after high-intensity focused ultrasound (HIFU) ablation for presumed uterine fibroids.
MATERIALS AND METHODS: 15,759 consecutive patients who came for HIFU treatment, from November 2008 to September 2019, for presumed uterine fibroids were retrospectively reviewed. All the patients had completed a pre-HIFU MRI. All MRI images were independently analyzed and interpreted by two radiologists in every center.
RESULTS: According to the T2WI MRI features of hyperintensity, accompanied by irregular margins, necrosis or cystic degeneration, multi-lobulated lesion with internal septation, 46 patients were suspected to be uterine sarcomas before HIFU. Eleven patients were histologically diagnosed as uterine sarcomas after laparotomy. Among the 15713 patients who received HIFU treatment for presumed uterine fibroids, 8 patients were found to have occult recurrence during the follow-up period, and 6 were confirmed histologically as uterine sarcomas after laparotomy. The incidence rate of uterine sarcomas was 0.108% (17/15759). Among them, 12 cases were low-grade endometrial stromal sarcoma (LG-ESS) and 5 cases were uterine leiomyosarcoma (LMS). No histological dissemination of the sarcoma was detected in patients with unexpected uterine sarcomas.
CONCLUSION: Although some MRI features of uterine sarcomas and uterine fibroids overlapped, MRI is valuable in distinguishing between uterine fibroids and uterine sarcomas. HIFU does not seem to cause histological dissemination of the sarcoma, but follow-up visits should be strictly adhered to in order to detect unexpected uterine sarcomas at an early stage and to treat them in a timely manner.
MATERIALS AND METHODS: 15,759 consecutive patients who came for HIFU treatment, from November 2008 to September 2019, for presumed uterine fibroids were retrospectively reviewed. All the patients had completed a pre-HIFU MRI. All MRI images were independently analyzed and interpreted by two radiologists in every center.
RESULTS: According to the T2WI MRI features of hyperintensity, accompanied by irregular margins, necrosis or cystic degeneration, multi-lobulated lesion with internal septation, 46 patients were suspected to be uterine sarcomas before HIFU. Eleven patients were histologically diagnosed as uterine sarcomas after laparotomy. Among the 15713 patients who received HIFU treatment for presumed uterine fibroids, 8 patients were found to have occult recurrence during the follow-up period, and 6 were confirmed histologically as uterine sarcomas after laparotomy. The incidence rate of uterine sarcomas was 0.108% (17/15759). Among them, 12 cases were low-grade endometrial stromal sarcoma (LG-ESS) and 5 cases were uterine leiomyosarcoma (LMS). No histological dissemination of the sarcoma was detected in patients with unexpected uterine sarcomas.
CONCLUSION: Although some MRI features of uterine sarcomas and uterine fibroids overlapped, MRI is valuable in distinguishing between uterine fibroids and uterine sarcomas. HIFU does not seem to cause histological dissemination of the sarcoma, but follow-up visits should be strictly adhered to in order to detect unexpected uterine sarcomas at an early stage and to treat them in a timely manner.