[Uterin sarcoma, high-grade stroma, indifferenciated, referential].

Area of Science:

• Gynecologic Oncology
• Sarcoma Research
• Uterine Malignancies

Context:

• High-grade endometrial stromal sarcoma (HGESS) and uterine undifferentiated sarcoma (UUS) are rare uterine malignancies.
• These cancers arise from mesenchymal endometrial cells, exhibiting aggressive behavior and poor prognosis.

Purpose:

• To outline the characteristics, diagnosis, and management strategies for HGESS and UUS.
• To emphasize the importance of multidisciplinary discussion in treatment planning.

Summary:

• HGESS and UUS typically affect women around 55 years old, presenting with symptoms like vaginal bleeding and pelvic mass.
• A significant proportion (65%) are diagnosed at advanced stages (III-IV), with a median overall survival of approximately 20 months.
• Standard treatment includes total hysterectomy with bilateral oophorectomy; systematic lymphadenectomy is not advised. Adjuvant therapies (chemotherapy, radiotherapy) and surgical management of metastatic disease are critical considerations, with doxorubicin-based chemotherapy as a standard for inoperable cases.

Impact:

• Provides essential information for clinicians managing rare uterine sarcomas.
• Highlights the need for tailored treatment approaches based on disease stage and metastasis.
• Contributes to understanding the clinical course and therapeutic options for HGESS and UUS.