The distinction of clear cell carcinoma of the female genital tract, clear cell renal cell carcinoma, and translocation-associated renal cell carcinoma: An immunohistochemical study using tissue microarray

Huiying He, Grace X. Zhou, Ming Zhou, Longwen Chen

Research output: Contribution to journalArticle

7 Scopus citations

Abstract

Clear cell carcinoma of the female genital tract (CCCa) shares many histologic features with clear cell renal cell carcinoma (CCRCC) and translocation-associated renal cell carcinoma (TA-RCC), the latter in particular. When CCRCC or TA-RCC metastasizes to the female genital tract, or when patients have a history of both CCCa- and RCC-developed metastatic lesions, it is critical to distinguish the 3 lesions. Such a distinction is not always possible based on the morphology alone and often requires immunostains. We therefore investigated the utility of a panel of routinely used immunohistochemical markers including cytokeratin (CK) 7 and 20, CD10, α-methylacyl-CoA racemase, carbonic anhydrase IX (CA IX), TFE3, and WT-1 in the distinction of the 3 lesions on a tissue microarray of 12 CCCa, 5 TA-RCC, and 23 CCRCC cases. CK7 was positive in all CCCa cases, but only in 20% of TA-RCCs and 4.3% of CCRCCs. In contrast, CD10 was positive in all TA-RCCs and 91.3% of CCRCCs, but in only 7.5% of CCCa cases. TFE3 was positive in all TA-RCCs, but negative in all CCCa and CCRCC cases. CA IX was positive in 87% of CCRCCs, but in only 20% of TA-RCCs, and was negative in all CCCa cases. CK20, α-methylacyl-CoA racemase, and WT-1 were not contributory to the distinction. Although morphologically similar, CCCa can be reliably distinguished from TA-RCC and CCRCC. CCCa is mostly CK7/CD10/CA IX/TFE3, TA-RCC is usually CK7/CD10/CA IX/TFE3, whereas CCRCC is mostly CK7/CD10/CA IX/TFE3. To the best of our knowledge, this was the first study to directly compare the immunophenotypes of these 3 lesions.

Original languageEnglish (US)
Pages (from-to)425-430
Number of pages6
JournalInternational Journal of Gynecological Pathology
Volume30
Issue number5
DOIs
Publication statusPublished - Sep 1 2011

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Keywords

  • Clear cell carcinoma of the female genital tract
  • Clear cell renal cell carcinoma
  • Immunohistochemistry
  • Translocation-associated renal cell carcinoma

ASJC Scopus subject areas

  • Pathology and Forensic Medicine
  • Obstetrics and Gynecology

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