Uterine sarcoma is a kind of malignant mesenchymal tissue-derived tumor, accounting for about 1% of all female genital tract malignant tumors, accounting for 3% to 7% of uterine malignant tumors [1]. The overall prognosis of uterine sarcoma is poor. The 5-year survival rate of stage I-II is 45-50 %, and the 5-year survival rate of advanced stage is 0-15 % [2]. The histological types of uterine sarcoma are complex. Uterine leiomyosarcoma ( uLMS ) is the most common (40 %~50%), followed by low-grade endometrial stromal sarcoma ( LGESS ) [1], and there are more than ten other rare subtypes.
The pathological diagnosis of uterine sarcoma indicates that there is cross-expression between immunohistochemical markers of different types of uterine sarcoma. Molecular detection is recommended for conditional units, and second-generation sequencing is one of the main detection methods. For some previously unclassified uterine sarcomas or newly emerging subtype classifications, the diagnosis requires the support of molecular test results [3]. Previous studies have found that TP53, RB1, ATRX, PTEN and BRCA2 gene mutations / deletions are common in uLMS [4], while multiple forms of gene fusion are more common in ESS [5].

In addition to auxiliary typing and prognosis, the NCCN guidelines recommend that comprehensive genomic testing can be used for metastatic patients to find opportunities for targeted therapy of pan-cancer species. For patients with recurrence, metastasis, and inoperability, TRK inhibitors can be used for tumors with positive NTRK gene fusion, ALK inhibitors can be used for inflammatory myofibroblastic tumors ( IMT ) with ALK translocation, and PARP inhibitors can be used for Leiomyosarcoma (LMS) with BRCA ( mainly BRCA2 ) mutations. [5]

[1] Guideline for diagnosis and treatment of uterine sarcoma(2021)
[2] Pathology. 2007 Feb;39(1):55-71.
[3] Specification for pathological diagnosis of uterine sarcoma
[4] Clin Cancer Res. 2020 Jul 15;26(14):3881-3888.
[5] NCCN Uterine Neoplasms Guidelines 2024 v3
[6] Geburtshilfe Frauenheilkd. 2021 Oct;81(10):1145-1153.
CORE GENECORE [5-6]

1.Auxiliary uterine sarcoma subtype classification and prognosis interpretation ;
2.Detecting targeted therapeutic genes to assist in the formulation of clinical treatment plans.
1. Nucleic Acid Extraction
2. Library Preparation (3.5 hours total time)
3. Sequencing
4. Auto-data Analysis
5. Report
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