title: [PSA: a new prostatic marker. A help or an added factor of confusion?].
abstract: In patients with a normal digital rectal examination and serum PSA levels under 18.4 ng/ml Yang (i.e. under 10.0 ng/ml Hybritech or under 14.4 ng.ml with the Basel Cantonal Hospital assay), twice yearly then yearly follow-up examinations are sufficient. More closely spaced examinations and a transrectal ultrasound scan are appropriate in patients with abnormalities upon digital rectal examination, especially when serum PSA levels are consistently elevated.
authors.affiliation: Hormonlaboratorien, Frauenspital, Université de Bâle, Suisse.
authors.forename: P R
authors.initials: PR
authors.lastname: Huber
authors.forename: M
authors.initials: M
authors.lastname: Wisard
authors.forename: H P
authors.initials: HP
authors.lastname: Schmid
mesh_terms: D003937:Diagnosis, Differential; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D010173:Palpation; D017430:Prostate-Specific Antigen / Q000097:blood*; D011471:Prostatic Neoplasms / Q000097:blood / Q000175:diagnosis* / Q000000981:diagnostic imaging; D012007:Rectum; D014463:Ultrasonography
chemical_list: D017430:Prostate-Specific Antigen