Portal de Periódicos da CAPES

Frequent expression of neuroendocrine markers in mucinous tubular and spindle cell carcinoma of the kidney.

2006; University of Murcia; Volume: 21; Issue: 1 Linguagem: Inglês

10.14670/hh-21.7

0213-3911

Naoto Kuroda, Ondřej Hes, E Miyazaki, Taro Shuin, Hideaki Enzan,

Neuroendocrine Tumor Research Advances

Mucinous tubular and spindle cell carcinoma (MTSCC) is a new tumorous entity which has been recently established. In this article, we examined the expression of neuroendocrine markers including neuron specific enolase (NSE), chromogranin A and synaptophysin in 16 cases of MTSCC using immunohistochemistry. The sex ratio (male: female) of the patients was 4:12. In normal kidney, distal tubules or collecting ducts were positive for NSE, but no structures were positive for chromogranin A or synaptophysin. All MTSCCs showed a positive reaction for NSE. Additionally, fifteen of sixteen neoplasms (93.8%) with MTSCC showed the expression of either chromogranin A or synaptophysin or both. Finally, it is possible that MTSCC may be one of renal neoplasms which frequently exhibit the neuroendocrine differentiation.