title: A rare case of spontaneous necrosis of primary renal cell carcinoma.
abstract: A 42-year-old woman was referred to our hospital with a chief complaint of asymptomatic gross hematuria. Computed tomography revealed a 4-cm tumour in the left kidney and radical nephrectomy was performed. Microscopically, the tumour was completely necrotic and consisted of nests of cells with abundant cytoplasm and large nuclei. Immunohistochemical analysis indicated complete infarction of the chromophobe renal cell carcinoma. Two years after surgery, the patient remained recurrence-free.
authors.affiliation: Department of Urology, Osaka General Medical Center, Bandaihigashi, Sumiyoshi-ku, Osaka, Japan;
authors.forename: Kyosuke
authors.initials: K
authors.lastname: Matsuzaki
authors.affiliation: Department of Urology, Osaka General Medical Center, Bandaihigashi, Sumiyoshi-ku, Osaka, Japan;
authors.forename: Ryoichi
authors.initials: R
authors.lastname: Imamura
authors.affiliation: Department of Urology, Osaka General Medical Center, Bandaihigashi, Sumiyoshi-ku, Osaka, Japan;
authors.forename: Toshichika
authors.initials: T
authors.lastname: Iwanishi
authors.affiliation: Department of Urology, Osaka General Medical Center, Bandaihigashi, Sumiyoshi-ku, Osaka, Japan;
authors.forename: Masahiro
authors.initials: M
authors.lastname: Nakagawa
authors.affiliation: Department of Urology, Osaka General Medical Center, Bandaihigashi, Sumiyoshi-ku, Osaka, Japan;
authors.forename: Go
authors.initials: G
authors.lastname: Tanigawa
authors.affiliation: Department of Urology, Osaka General Medical Center, Bandaihigashi, Sumiyoshi-ku, Osaka, Japan;
authors.forename: Koichi
authors.initials: K
authors.lastname: Tsutahara
authors.affiliation: Department of Pathology, Osaka General Medical Center, Bandaihigashi, Sumiyoshi-ku, Osaka, Japan;
authors.forename: Kohki
authors.initials: K
authors.lastname: Shimazu
authors.affiliation: Department of Pathology, Osaka General Medical Center, Bandaihigashi, Sumiyoshi-ku, Osaka, Japan;
authors.forename: Hiroaki
authors.initials: H
authors.lastname: Fushimi
authors.affiliation: Department of Pathology, Nagoya Daini Red Cross Hospital, Myokencho, Syowa-ku, Nagoya, Japan.
authors.forename: Toyonori
authors.initials: T
authors.lastname: Tsuzuki
authors.affiliation: Department of Urology, Osaka General Medical Center, Bandaihigashi, Sumiyoshi-ku, Osaka, Japan;
authors.forename: Seiji
authors.initials: S
authors.lastname: Yamaguchi