Fig. 2From: Performance of 5-aminolevulinic-acid-based photodynamic diagnosis for radical prostatectomyAssociation between pathological finding and red fluorescence in positive surgical margin and extraprostatic extension. a. In a case of heat degeneration and short linear length (<3 mm) of positive surgical margin, red fluorescence was not observed. b. All 3 cases of extraprostatic extension had no red fluorescence with tissue covering the tumor cellsBack to article page