Cover Image

Renal Carcinoid Tumor – Primary or Metastatic? A Case Report

Vânia Grenha, Bruno Pereira, Rui Martins, Hugo Coelho, Edson Retroz, Alfredo Mota

Abstract


Introduction: Renal carcinoid tumor is an extremely rare neoplasia. It arises from neuroendocrine cells, which have never been identified within the normal renal parenquima. After diagnosis, which is usually histological and proceeds nephrectomy, it is therefore important to exclude a primary tumor located elsewhere. Somatostatin receptor scintigraphy is a fundamental test in identification of primary tumor/metastases.

Presentation of Case: We present a 77 year old man with this rare tumor: a primary carcinoid renal tumor, diagnosed in Portugal. He was asymptomatic and staging revealed no metastases. A partial nephrectomy was performed. After 2 years of follow up there is no evidence of clinic or imagiologic recurrence.

Conclusion: There are no neuroendocrine cells within renal parenquima. Thus primary renal carcinoid is still a mystery. Our case confirms the existence of this entity and allows us to know more about its natural history. It is important to disclose all cases of this rare condition, so we can better treat these patients in the future.


Keywords


Primary renal carcinoid tumor; neuroendocrine cells; somatostatin receptor scintigraphy

Full Text:

PDF

References


Jeung J, Cao D, Selli B, Clapp W, Oliai B, Parwani A, Allan R. Primary renal carcinoid tumors: clinicopatholhologic features of 9 cases with emphasis on novel immunohistochemical findings. Human Pathology. 2011, 42:1554-1561

Singh P, Malhotra A, Kashyap V. Carcinoid tumor of the kidney: An unusual renal tumor. Indian J. Urol 2009, 25: 537-538

Korkmaz T, Seber S, Yavuzer D, Gumus M, Turhal N. Primary renal carcinoid:Treatment and prognosis. Critical Reviews in Oncology/Hematology. 2013, 87:256-64

Lane B, Jour G, Zhou M. Renal neuroendocrine tumors. Indian J Urol. 2009, 25:155-160

Resnick M, Unterberger H, McLoughlin P. Renal carcinoid producing the carcinoid syndrome. Med Times. 1966, 94:895-896

Cabral Ribeiro J, Sousa L, Ribeiro Santos A. Primary neuroendocrine tumor of the kidney. Actas Urol Esp. 2010, 34: 907-9

Geramizadeh B, Khezri A, Shariat M. Renal Carcinoid Tumor. Saudi J Kidney Dis Transplant. 2009, 20: 462-64.

Shurtleff B, Shvarts O, Rajfer J. Carcinoid Tumor of the Kidney: Case Report and Review of the Literature. Rev Urol. 2005, 7: 229-33

McCaffrey J, Reuter V, Herr H, Macapinlac H, Russo P, Motzer R. Carcinoid tumor of the kidney. The use of somatostatin receptor scintigraphy in diagnosis and management. Urologic Oncology. 2000, 5:108-111

Kato Y, Nakamura K, Yamada Y, Nishikawa G, Yoshizawa T, Zennnami K, Katsuda R, Tobiume M, Aoki S, Taki T. A rare case of metastatic renal carcinoid. BMC Urology. 2010, 10:22


Refbacks

  • There are currently no refbacks.


AJCC-REP (ISSN 2572-5742)Copyright © 2012-2020. All rights reserved. Published by Ivy Union Publishing, 3204 Valley Rush Dr, Apex, North Carolina 27502, United States