title: Double primary tumors-renal cell carcinoma and duodenal mucinous adenocarcinoma.
abstract: A 59-year old patient was admited to the Gastroenterology Clinic with the signs of gastrointestinal bleeding. Computerized tomography (CT) and a barium-meal radiography revealed a circumferential nodular wall narrowing and incomplete stricture at the D2 part of the duodenum. CT also showed a poorly demarcated mass in the upper and lower poles of the left kidney. During the operation, the whole kidney together with the tumor was removed and also a part of the duodenum. Morphological features of both tumors were typical and distinctive enough to set the diagnosis of two independent primary tumors. The possibility of one being the metastasis of the other was excluded. The diagnosis of double primary malignant neoplasms - renal cell carcinoma and duodenal mucinous adenocarcinoma was made.
authors.affiliation: Clinical Center of Vojvodina, Centre for Pathology and Histology, Novi Sad, Serbia.
authors.forename: Nada
authors.initials: N
authors.lastname: Vuckovic
authors.affiliation: Department of Histology and Embryology, Faculty of Medicine, Novi Sad, Serbia.
authors.forename: Bojana
authors.initials: B
authors.lastname: Andrejic
authors.affiliation: Clinical Center of Vojvodina, Centre for Pathology and Histology, Novi Sad, Serbia.
authors.forename: Matilda
authors.initials: M
authors.lastname: Djolai
authors.affiliation: Clinic for Urology, Clinical Center of Vojvodina, Novi Sad, Serbia.
authors.forename: Srdjan
authors.initials: S
authors.lastname: Zivojinov
authors.affiliation: Clinic for Abdominal, Endocrine and Transplantation Surgery, Clinical Center of Vojvodina, Novi Sad, Serbia.
authors.forename: Katarina
authors.initials: K
authors.lastname: Sarcev
authors.affiliation: Department of Pathology, Faculty of Medicine, Novi Sad, Serbia.
authors.forename: Dejan
authors.initials: D
authors.lastname: Vuckovic
keywords: Duodenal cancer; mucinous adenocarcinoma; multiple primary neoplasms; renal cell carcinoma