期刊
CANCER GENETICS
卷 256, 期 -, 页码 81-85出版社
ELSEVIER SCIENCE INC
DOI: 10.1016/j.cancergen.2021.04.006
关键词
Endometrial stromal sarcoma; Ossifying Fusion; PHF1-BRD8
资金
- Taipei-Veterans General Hospital, Taipei, Taiwan [V106C-181, V109D51-002-MY2-1]
Low-grade endometrial stromal sarcoma and ossifying fibromyxoid tumors differ in terms of site, sex, and morphological characteristics, but share a common PHF1 gene-related rearrangement. A case of endometrial stromal sarcoma with distinct ossification was reported, with the identification of a new PHF1-BRD8 fusion transcript using molecular techniques.
Low-grade endometrial stromal sarcoma and ossifying fibromyxoid tumors are two types of mesenchymal tumors that share no similarities in terms of site, sex, and morphological characteristics. They are rare, low grade tumors of uncertain lineage, with no definite immunological markers. Interestingly, a common PHF1 gene-related rearrangement was observed in these two tumors. Here, we report a case of endome-trial stromal sarcoma with distinct ossification. Microscopically, the tumor is composed of bland-looking ovoid cells with low cellularity in the fibromyxoid stroma. Foci of metaplastic bone formation were noted. Using a combination of FISH, transcriptome sequencing, and molecular techniques, we identified a new PHF1-BRD8 fusion transcript, which was previously described, but in its reciprocal fusion form. This case expands the current understanding of low-grade endometrial stromal sarcoma and emphasizes the impor-tance of molecular characterization of unique fusion, which may be related to its distinct morphological features and the possibly chemosensitive target. (c) 2021 Elsevier Inc. All rights reserved.
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