title: [Radiologic findings in renal metastases].
abstract: US and CT findings in 41 cases of renal metastasis with known primary malignancy, mostly lymphoma and pulmonary carcinoma, are analysed retrospectively. All of them were examined with US and 22 with CT. The renal metastases were bilateral in 20 cases and multiple in 21. The echo structure was "infiltrative" in 20, non-infiltrative in 21, homogeneous in 11 and non-homogeneous in 30. 33 metastases were echo-poor, 5 were hyperechoic, two iso-echoic and one of mixed echogenicity. The lymphomas were usually homogeneous, infiltrative and echo-poor, whereas the metastases of pulmonary primaries were usually nonhomogeneous, non-infiltrative, echo-poor and some hyperechoic. None of hyperechoic metastases were lymphomas. One case out of 22 examined with CT indicated a false negative US finding, while 4 US examinations showed only some of the lesions detected with CT. The lesions were hypodense and non-homogeneous in plain CT and gave non-homogeneous enhancement in all cases except for 4 with homogeneous lesions. CT showed smaller and more numerous lesions than US.
authors.affiliation: Abteilung für diagnostische Radiologie, Universitätskrankenhaus in Oulu, Finnland.
authors.forename: M
authors.initials: M
authors.lastname: Päivänalo
authors.forename: T
authors.initials: T
authors.lastname: Tikkakoski
authors.forename: J
authors.initials: J
authors.lastname: Merikanto
authors.forename: I
authors.initials: I
authors.lastname: Suramo
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D005260:Female; D006801:Humans; D007680:Kidney Neoplasms / Q000000981:diagnostic imaging / Q000556:secondary*; D008175:Lung Neoplasms / Q000000981:diagnostic imaging / Q000473:pathology*; D008223:Lymphoma / Q000000981:diagnostic imaging / Q000473:pathology*; D008297:Male; D008875:Middle Aged; D012189:Retrospective Studies; D014057:Tomography, X-Ray Computed; D014463:Ultrasonography
vernacular_title: Radiologische Befunde bei renalen Metastasen.