Brain metastasis of a papillary renal cell carcinoma, identified as type 2.
Papillary renal cell carcinomas (PRCCs) tend to metastasize to lymph nodes, while metastasis to the brain is extremely rare. We report the case of a man who had a brain metastasis of PRCC type 2. He was brought to our hospital due to the sudden onset of convulsions. Diagnostic imaging studies showed a metastatic brain tumor in the left parietal lobe, and a primary renal tumor in the right kidney, with paraaortal lymph node metastases. An excision of brain tumor was performed. The brain tumor had a papillary structure with eosinophilic cytoplasm. Five weeks later nephrectomy was carried out. Histological analysis of the nephrectomy specimen revealed the same papillary structure, which was compatible with PRCC type 2.
Hasegawa
Masanori
M
Department of Urology, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan.
Kikuchi
Eiji
E
Yasumizu
Yota
Y
Hattori
Seiya
S
Takeda
Toshikazu
T
Morita
Shinya
S
Kosaka
Takeo
T
Miyajima
Akira
A
Horiguchi
Takashi
T
Mikami
Shuji
S
Oya
Mototsugu
M
D001932:Brain Neoplasms / Q000556:secondary*; D002292:Carcinoma, Renal Cell / Q000145:classification / Q000473:pathology*; D006801:Humans; D007680:Kidney Neoplasms / Q000473:pathology*; D008297:Male; D008875:Middle Aged