Adelio Valtorta
Italy
Case Report
Non-Functioning Paraganglioma Located at the Renal Hilus: Case Report
Author(s): Mattia Garancini, Giovanni Cesana, Camillo Di Bella, Antonio Tancredi, Adelio Valtorta, Maria Enrica Giovenzana and Massimo BeltramoMattia Garancini, Giovanni Cesana, Camillo Di Bella, Antonio Tancredi, Adelio Valtorta, Maria Enrica Giovenzana and Massimo Beltramo
Paragangliomas are a type of neuroendocrine tumor derived from embryonic neural crest. They are mostly found in the adrenal glands (pheocromocytomas) and in the extra-adrenal paraganglia of the autonomic nervous system (extra-adrenal paraganglioma). Paragangliomas arising from the kidney or in the renal hilus are very rare and a preoperative diagnosis is hardly made. We present the case of a 44-years-old female with a 1-week history of feeling a mass in the right-upper side of the abdomen and no other symptoms. Computerized tomography (CT) demonstrated a round solid extra-adrenal mass located at the renal hilus. Laparotomy was performed with the intention of removing the mass and providing a histopathological diagnosis. Microscopic examination revealed a characteristic “Zellballen” organization and the presence of Sustentacular Cells S-100 positive. On these findings, extr.. View More»
