We herein report a rare case of a 79-year-old man who presented with the simultaneous occurrence of pancreatic neuroendocrine tumors (PNET) and renal cell carcinomas (RCC), without any other Von Hippel-Lindau (VHL)-associated lesions or any pertinent family history. Computed tomography showed vascular-rich solid lesions in the left kidney and the pancreatic tail, measuring 72 mm and 15 mm in size, respectively. Preoperatively, RCC with pancreatic metastasis was suspected and laparotomy was performed. However, the resected specimens revealed a different tumor histology, namely renal clear cell carcinoma (G2, pT3) and PNET (G1, pT3). The patient and his family refused genetic testing, however, so far, the patient has not developed any VHL-associated lesions for more than four years.
Internal medicine (Tokyo, Japan). 2017 Aug 10 [Epub ahead of print]
Hiroyuki Matsubayashi, Masashi Niwakawa, Katsuhiko Uesaka, Keiko Sasaki, Yoshimi Kiyozumi, Hirotoshi Ishiwatari, Kinichi Hotta, Kenichiro Imai, Sayo Ito, Kohei Takizawa, Masaki Tanaka, Noboru Kawata, Naomi Kakushima, Hiroyuki Ono
Division of Endoscopy, Shizuoka Cancer Center, Japan., Division of Urology, Shizuoka Cancer Center, Japan., Division of Hepato-Biliary-Pancreatic Surgery, Shizuoka Cancer Center, Japan., Division of Pathology, Shizuoka Cancer Center, Japan., Clinic of Genetic Medicine, Shizuoka Cancer Center, Japan.