Surgical pathology criteria use browser back button to return thyroid-like follicular carcinoma of the kidney definition carcinoma of the kidney with a predominant follicular pattern diagnostic criteria rare - under 10 cases reported only series reported is 6 cases (amin) micro- and macrofollicular pattern reminiscent of thyroid carcinoma most follicles filled with eosinophilic proteinaceous fluid no papillae lined by cells with eosinophilic or amphophilic cytoplasm may have nuclear pseudoinclusions or grooves surrounded by prominent pseudocapsule metastasis from the thyroid must be ruled out must be negative for ttf1 and thyroglobulin must have no clinical or imaging evidence of thyroid primary behavior uncertain one case reported with widespread metastases (dhillon) one problematic case reported (sterlacci) renal tumor was negative for ttf1 and thyroglobulin subsequent lung metastasis was ttf1 positive, thyroglobulin not reported john p higgins md robert v rouse md department of pathology stanford university school of medicine stanford ca 94305-5342 original posting:: january 24, 2011 supplemental studies immunohistology ck7 1/7 pos amacr/racemase/p504s 0/6 cd10 1/7 pos pax2 1/7 pos ttf1 neg thyroglobulin neg classification / lists renal epithelial neoplasms classical types clear cell (conventional) renal cell carcinoma multilocular clear cell renal cell carcinoma papillary renal cell carcinoma chromophobe renal cell carcinoma carcinoma of collecting ducts of bellini renal cell carcinoma unclassified oncocytoma papillary adenoma (sarcomatoid) newer variants and types renal medullary carcinoma mucinous tubular and spindle cell carcinoma tubulocystic carcinoma xp11 translocation carcinoma neuroblastoma associated renal cell carcinoma renal cell carcinoma associated with end stage renal disease thyroid-like follicular carcinoma of the kidney clear cell tubulopapillary renal cell carcinoma oncocytic papillary renal cell carcinoma neuroendocrine tumors carcinoid neuroendocrine carcinoma bibliography srigley jr, delahunt b. generic viagra no prescription fast shipping online pharmacy generic viagra pills Uncommon and recently described renal carcinomas.. legal to order viagra online pharmacy viagra trusted on line sites to buy viagra canada viagra for sale viagra head office in toronto canada snopes