Korean J Urol.  2009 Mar;50(3):293-295.

Primary Renal Carcinoid Tumor

• Seo HP
• Shin DE
• Lim DH
• Muhn HY
• Kim CS

Abstract

Carcinoid tumors are low-grade malignant tumors arising from neuroendocrine cells. Primary renal carcinoid tumors are extremely rare, and only 56 cases have been reported in the literature. Because of the rarity of the lesion, its histogenesis and prognosis are unclear. Here we report a case of a primary renal carcinoid tumor in a 51-year-old man that was found incidentally in a medical examination and was treated by transperitoneal radical nephrectomy.

Keyword

Carcinoid tumor; Kidney

MeSH Terms

Carcinoid Tumor
Humans
Kidney
Middle Aged
Nephrectomy
Neuroendocrine Cells
Prognosis

Figure

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  Fig. 1 Excretory urogram showing the right renal pelvis compressed by the renal mass and the contrast inflowed into the mass.

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  Fig. 2 Contrast-enhanced CT scan of the abdomen showing a right cystic renal mass with calcification.

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  Fig. 3 Microscopically, the tumor cells were round to polygonal with a high N/C ratio, and they were arranged in a trabecula (H&E, ×400).

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