Papillary renal cell carcinoma: Histology and immunohistochemistry

A. A. Renshaw, Christopher Corless

Research output: Contribution to journalArticle

94 Citations (Scopus)

Abstract

Papillary renal cell carcinoma (RCC) is an uncommon subtype of RCC that has distinctive gross, histologic, and cytogenetic features, but for which only limited immunohistochemistry data have been reported. We compared 36 papillary RCCs and five renal cell adenomas with 19 nonpapillary (clear cell and granular) RCCs using a variety of antibodies to keratin and carcinoembryonic antigen (CEA). Papillary tumors were often multifocal and associated with coexistent adenomas, whereas nonpapillary tumors generally lacked these features. Low-grade papillary RCCs demonstrated three occasionally overlapping histologic patterns (typical, trabecular, and sclerotic), whereas high-grade tumors were characterized by an admixture of many patterns. Immunohistochemically, 100% (36 of 36 cases) of the papillary tumors were positive for AE1/AE3, and 92% (33 of 36 cases) were positive for callus keratins; only 3% (one of 36 cases) stained for 34BE12, and 11% (four of 36 cases) weakly stained for CEA. The five renal cell adenomas were likewise positive for AE1/AE3 (five of five cases) and callus (five of five cases) keratins. In contrast, 85% (16 of 19 cases) of the nonpapillary tumors stained for AE1/AE3, but only 5% (one of 19 cases) stained for callus; none (0/19) stained for 34BE12, and 10% (2/19) weakly stained for CEA. The consistent expression of callus keratins by papillary RCCs and renal cell adenomas underscores the close relation of these lesions, providing additional evidence for their oncological distinction from nonpapillary RCCs.

Original languageEnglish (US)
Pages (from-to)842-849
Number of pages8
JournalAmerican Journal of Surgical Pathology
Volume19
Issue number7
StatePublished - 1995
Externally publishedYes

Fingerprint

Renal Cell Carcinoma
Bony Callus
Histology
Keratins
Adenoma
Immunohistochemistry
Carcinoembryonic Antigen
Neoplasms
Kidney
Cytogenetics
Antibodies

Keywords

  • 34BE12
  • Adenoma
  • AE1/AE3
  • Cal lus
  • CEA
  • Immunoperoxidase
  • Keratin
  • Nonpapillary
  • Papillary
  • Renal cell carcinoma

ASJC Scopus subject areas

  • Anatomy
  • Pathology and Forensic Medicine

Cite this

Papillary renal cell carcinoma : Histology and immunohistochemistry. / Renshaw, A. A.; Corless, Christopher.

In: American Journal of Surgical Pathology, Vol. 19, No. 7, 1995, p. 842-849.

Research output: Contribution to journalArticle

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