A Rare Partner of TFE3 in the Xp11 Translocation Renal Cell Carcinoma: Clinicopathological Analyses and Detection of MED15-TFE3 Fusion
Joint Authors
Ye, Hong
Qin, Shuming
Li, Ning
Lin, Min
Xu, Yanmei
Li, Xiaomei
Source
Issue
Vol. 2019, Issue 2019 (31 Dec. 2019), pp.1-8, 8 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2019-11-11
Country of Publication
Egypt
No. of Pages
8
Main Subjects
Abstract EN
Xp11 translocation renal cell carcinoma (RCC), a member of the microphthalmia-associated transcription factor (MiTF) family, is a rare renal tumor characterized by different translocations involving the TFE3 gene.
Here, we reported a case of Xp11 translocation RCC with a rare MED15-TFE3 gene fusion by RNA sequencing.
Morphologically, the tumor cells were arranged in a solid and small nest pattern.
The cytoplasm was voluminous, flocculent eosinophilic, and vacuolated.
The nuclei were round or polygon with fine granular chromatin, and the nucleoli were unconspicuous.
Psammoma bodies were observed in mesenchyma.
Immunohistochemically, the tumor cells were diffuse moderately or strongly positive for CD10, P504S, vimentin, PAX8, RCC, AE1/AE3, and SDHB and focally positive for CK7 and CA IX while negative for cathepsin K, HMB45, Melan-A, Ksp-cadherin, and CD117.
The Ki67 proliferation index was approximately 3%.
However, TFE3 labeling showed an uncertainly weak nuclear staining and been considered negative.
Fluorescence in situ hybridization (FISH) demonstrated a positive result that splits signals with a distance of > 2 signal diameters.
Subsequently, RNA sequencing confirmed a fusion of MED15 gene exon 11 on chromosome 22 with TFE3 gene exon 6 in the tumor.
The patient was alive with no evidence of recurrence.
Our report contributes to the understanding on MED15-TFE3 RCC.
American Psychological Association (APA)
Ye, Hong& Qin, Shuming& Li, Ning& Lin, Min& Xu, Yanmei& Li, Xiaomei. 2019. A Rare Partner of TFE3 in the Xp11 Translocation Renal Cell Carcinoma: Clinicopathological Analyses and Detection of MED15-TFE3 Fusion. BioMed Research International،Vol. 2019, no. 2019, pp.1-8.
https://search.emarefa.net/detail/BIM-1126378
Modern Language Association (MLA)
Ye, Hong…[et al.]. A Rare Partner of TFE3 in the Xp11 Translocation Renal Cell Carcinoma: Clinicopathological Analyses and Detection of MED15-TFE3 Fusion. BioMed Research International No. 2019 (2019), pp.1-8.
https://search.emarefa.net/detail/BIM-1126378
American Medical Association (AMA)
Ye, Hong& Qin, Shuming& Li, Ning& Lin, Min& Xu, Yanmei& Li, Xiaomei. A Rare Partner of TFE3 in the Xp11 Translocation Renal Cell Carcinoma: Clinicopathological Analyses and Detection of MED15-TFE3 Fusion. BioMed Research International. 2019. Vol. 2019, no. 2019, pp.1-8.
https://search.emarefa.net/detail/BIM-1126378
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1126378