title: [Breast carcinoma metastasis to the gastrointestinal tract and tumour-to-tumour metastasis to renal cell carcinoma].
abstract: Breast carcinoma metastasis to the gastrointestinal tract and tumour-to-tumour metastasis is rare. We describe a case of a 71-year-old woman with previous breast cancer presenting with dyspepsia, nausea and weight-loss. Biopsies from the pylorus revealed what appeared to be a gastric carcinoma. A CT scan showed large kidney mass and biopsies revealed clear cell renal cell carcinoma with areas of poorly differentiated adenocarcinoma. Subsequent immunohistochemical analysis revealed the presence of breast carcinoma in both locations.
authors: Urologisk Afdeling, Roskilde Sygehus, Køgevej 7-13, 4000 Roskilde. mosholt@hotmail.com.
authors: Karina Sif Søndergaard
authors: KS
authors: Mosholt
authors: Anette Pedersen
authors: AP
authors: Pilt
authors: Hans-Erik
authors: HE
authors: Wittendorff
mesh_terms: D000368:Aged; D001706:Biopsy; D001943:Breast Neoplasms / Q000473:pathology*; D002292:Carcinoma, Renal Cell / Q000175:diagnosis / Q000556:secondary*; D017809:Fatal Outcome; D005260:Female; D006801:Humans; D013274:Stomach Neoplasms / Q000175:diagnosis / Q000556:secondary*