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  • Title: Autofluorescent diagnostics in laryngeal pathology.
    Author: Baletic N, Petrovic Z, Pendjer I, Malicevic H.
    Journal: Eur Arch Otorhinolaryngol; 2004 May; 261(5):233-7. PubMed ID: 14513257.
    Abstract:
    Autofluorescent diagnostics are based on the ability of oxidized flavin mononucleotide (FMN) in normal cells to emit green fluorescence when exposed to blue light. Neoplastic cells have significantly lower concentrations of FMN and do not emit green fluorescence. Autofluorescent endoscopy is designed for early, accurate and minimally invasive diagnostics for laryngeal pathology. This procedure has the ability to give information about the nature of laryngeal lesions without the devastation of tissue and has important advantages over standard biopsy. In our investigation we used the System of AutoFluorescent Endoscopy (SAFE 1000) designed by Pentax. We examined 38 patients using the SAFE 1000 system, and then all of the patients underwent laryngomicroscopy (LMS). In LMS, a biopsy was taken, and the diagnostic sensitivity of these two methods was compared according to the pathohistologic diagnosis. For statistical evaluation we used Fisher's exact test. We found that autofluorescent endoscopy has greater sensitivity in the detection of precancerous and malignant conditions in the larynx than standard laryngomicroscopy. We believe that autofluorescent endoscopy in addition to laryngomicroscopy gives a more accurate diagnosis of laryngeal pathology than laryngomicroscopy alone.
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