Translocation renal cell carcinomas in adults: A single-institution experience

Minghao Zhong, Patricia De Angelo, Lisa Osborne, Alberto E. Paniz-Mondolfi, Matthew Geller, Youfeng Yang, W. Marston Linehan, Maria J. Merino, Carlos Cordon-Cardo, Dongming Cai

Research output: Contribution to journalArticlepeer-review

89 Scopus citations

Abstract

Translocation renal cell carcinoma is a newly recognized subtype of renal cell carcinoma (RCC) with chromosomal translocations involving TFE3 (Xp11.2) or, less frequently, TFEB (6p21). Xp11 translocation RCC was originally described as a pediatric neoplasm representing 20% to 40% of pediatric RCCs, with a much lower frequency in the adult population. TFEB translocation RCC is very rare, with approximately 10 cases reported in the literature. Here, we describe the clinicopathologic features of adult translocation RCC from a single institution. Using tissue microarray, immunohistochemistry, cytogenetic examination, and fluorescence in situ hybridization, we identified 6 (∼5%) cases of TFE3 translocation RCC and 1 (<1%) case of TFEB translocation RCC in 121 consecutive adult RCC cases between 2001 and 2009. Our results suggest that weak TFE3 staining of a significant proportion of RCC cases may be because of expression of the full-length TFE3 protein rather than the chimeric fusion protein resulting from chromosomal translocation.

Original languageEnglish (US)
Pages (from-to)654-662
Number of pages9
JournalAmerican Journal of Surgical Pathology
Volume36
Issue number5
DOIs
StatePublished - May 2012
Externally publishedYes

Keywords

  • TFE3
  • TFEB
  • translocation renal cell carcinoma

Fingerprint

Dive into the research topics of 'Translocation renal cell carcinomas in adults: A single-institution experience'. Together they form a unique fingerprint.

Cite this