Renal carcinoma associated with a novel succinate dehydrogenase A mutation: A case report and review of literature of a rare subtype of renal carcinoma

Yasemin Ozluk, Diana Taheri, Andres Matoso, Oner Sanli, Neslihan Kayisoglu Berker, Evgeny Yakirevich, Sohail Balasubramanian, Jeffrey S. Ross, Siraj M. Ali, George J. Netto

Research output: Contribution to journalReview article

22 Scopus citations

Abstract

Renal cell carcinoma (RCC) linked to germline mutation of succinate dehydrogenase subunits A, B, C, and D (SDHA, SDHB, SDHC, and SDHD, respectively) has been recently included as a provisional entity in the 2013 International Society of Urological Pathology Vancouver classification. Most SDH-deficient tumors show SDHB mutation, with only a small number of RCC with SDHC or SDHD having been reported to date. Only one case of SDH-deficient renal carcinoma known to be SDHA mutated has been previously reported. Here we report an additional RCC harboring an SDHA mutation occurring in a 62-year-old man with right flank pain and nodal metastasis. The tumor was characterized by an infiltrative pattern with solid, acinar, and papillary components. Loss of SDHA and SDHB protein by immunohistochemistry confirmed the diagnosis. Hybrid capture-based comprehensive genomic profiling identified 3 genomic alterations in tumor tissue: (i) a novel single-nucleotide splice site deletion in SDHA gene, (ii) single-nucleotide deletion in NF2 gene, and (iii) EGFR gene amplification of 19 copies. This is the second report of SDHA-mutated RCC. With increased awareness, this rare tumor can be recognized on the basis of distinctive morphology and confirmation by immunohistochemistry and genomic profiling.

Original languageEnglish (US)
Pages (from-to)1951-1955
Number of pages5
JournalHuman Pathology
Volume46
Issue number12
DOIs
Publication statusPublished - Jan 1 2015

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Keywords

  • Immunohistochemistry
  • Renal carcinoma
  • SDHA
  • SDHB
  • Succinate dehydrogenase

ASJC Scopus subject areas

  • Pathology and Forensic Medicine

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