McDonald E C, Mukai K, Burke B A, Sibley R K
J Urol. 1983 Aug;130(2):333-5. doi: 10.1016/s0022-5347(17)51136-2.
We report a case of primary carcinoid of the kidney. The neoplasm had a trabecular growth pattern and was argyrophil positive and argentaffin negative. An extensive battery of immunohistochemical stains was negative for specific peptide products and keratin. Electron microscopy disclosed numerous cytoplasmic membrane-bound electron-dense core secretory granules and masses of intermediate microfilaments. A review of the pertinent medical literature revealed 5 previously reported cases.