title: [The metaphoric image of the "tail of a comet"].
abstract: The author places the metaphoric image of "comet tail" in the semiotic structural and triadic system of Peirce. This metaphoric image utilises the iconic quality of "resemblance". The discussion of the image of "comet tail" gives the author the opportunity to distinguish three varieties. One variety is static (example: round atelectasia), the other is dynamic (example: cancer of the breast) and the third is artificial (sonographic artifact).
authors.affiliation: Institut de Radiologie de la Faculté de Médecine, Strasbourg.
authors.forename: A
authors.initials: A
authors.lastname: Wackenheim
mesh_terms: D016477:Artifacts; D001943:Breast Neoplasms / Q000000981:diagnostic imaging*; D005260:Female; D006801:Humans; D008297:Male; D001261:Pulmonary Atelectasis / Q000000981:diagnostic imaging*; D009626:Terminology as Topic; D014056:Tomography, X-Ray; D014057:Tomography, X-Ray Computed