Korean J Urol.  2014 Oct;55(10):690-692. 10.4111/kju.2014.55.10.690.

Unclassified Mucinous Renal Cell Carcinoma: A Rare Histopathological Entity

• Raheem OA
• Godebu E
• Cohen SA
• Shabaik A
• Parsons JK

• KMID: 2069794
• DOI: http://doi.org/10.4111/kju.2014.55.10.690

Abstract

Renal cell carcinoma (RCC) with mucin production is extremely rare. We present the case of a previously healthy 76-year-old woman who underwent a robotic-assisted laparoscopic right nephrectomy for a 5-cm heterogeneously enhancing right renal mass. Pathology revealed mucin-producing epithelial RCC. We discuss the presentation and pathological features of this case and comment on its definitive treatment.

Keyword

Mucin; Renal cell carcinoma

MeSH Terms

Adenocarcinoma, Mucinous/*pathology/radiography/surgery
Aged
Carcinoma, Renal Cell/*pathology/radiography/surgery
Female
Humans
Kidney Neoplasms/*pathology/radiography/surgery
Nephrectomy/methods
Robotic Surgical Procedures/methods
Tomography, X-Ray Computed

Figure

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  FIG. 1 Transverse section of a computed tomography urogram showing a heterogeneous parenchymal right exophytic renal mass suspicious of renal cell carcinoma.

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  FIG. 2 The tumor displayed variable architectural patterns including areas of compact alveoli of clear cells consistent with clear cell carcinoma (×20).

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  FIG. 3 Glandular lumens contained blue mucin that was positive on mucicarmine stain (×20).

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  FIG. 4 Glandular lumens contained blue mucin that was positive on periodic acid-Schiff diastase stain (×20).

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