Fig. 2From: Genital invasion or perigenital spread may pose a risk of marginal misses for Intensity Modulated Radiotherapy (IMRT) in anal cancerPerigenital involvement in anal carcinoma: MR images Legend: Representative MR images of case 3 (left) and case 4 (right) in transversal and sagittal planes showing perigenital involvement in anal carcinoma in a T1 weighted sequence after administration of contrast agentBack to article page