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Case report: Metastatic renal carcinoid to the thyroid diagnosed by fine needle aspiration biopsy
Author(s) -
Bhalla Ritu,
Popp Aimee,
Nassar Aziza
Publication year - 2007
Publication title -
diagnostic cytopathology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.417
H-Index - 65
eISSN - 1097-0339
pISSN - 8755-1039
DOI - 10.1002/dc.20706
Subject(s) - medicine , fine needle aspiration , horseshoe kidney , thyroid , biopsy , kidney , renal mass , renal cell carcinoma , pathology , radiology , cytology , carcinoid tumour , nephrectomy
We report a case of primary renal carcinoid arising in a horseshoe kidney. To the best of our knowledge this is the first case to be reported in the cytology literature, which has been diagnosed by fine needle aspiration (FNA). A 32‐year‐old male, presented to the Emory University Hospital, with a renal mass arising in a horseshoe kidney; along with a thyroid mass. FNA of the renal mass resulted in an initial diagnosis of renal cell carcinoma, unclassified. A thyroid aspiration was attempted later, and revealed a neuroendocrine morphology. This was compared with the renal aspiration and both of them were found to have similar morphology. With the help of immunostains, a diagnosis of renal carcinoid tumor metastatic to the thyroid was made. Thus, we demonstrate that renal carcinoid, being a rare entity, can pose a diagnostic challenge. Diagn. Cytopathol. 2007;35:597‐600. © 2007 Wiley‐Liss, Inc.